Schneider Electric PowerChute Serial Shutdown

View CSAF
Summary
Successful exploitation of these vulnerabilities could allow attackers to overwrite critical files, forge or inject malicious log data, gain unauthorized account access, trigger denial?of?service conditions, truncate or alter logging information, reset user credentials, or expose sensitive information. The following versions of Schneider Electric PowerChute Serial Shutdown are affected:

PowerChute Serial Shutdown <=1.4





CVSS
Vendor
Equipment
Vulnerabilities




v3 6.1
SuSE, Schneider Electric, Red Hat, Microsoft Schneider Electric PowerChute Serial Shutdown Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), Improper Encoding or Escaping of Output, Improper Restriction of Excessive Authentication Attempts, Uncontrolled Resource Consumption, Improper Validation of Specified Quantity in Input, Improper Neutralization of CRLF Sequences ('CRLF Injection'), Insertion of Sensitive Information into Log File




Background

Critical Infrastructure Sectors: Communications, Critical Manufacturing, Energy, Healthcare and Public Health, Information Technology, Transportation Systems
Countries/Areas Deployed: Worldwide Company Headquarters Location: France


Vulnerabilities

Expand All +

CVE-2026-2399

PowerChute is vulnerable to improper restriction of file paths, which could allow critical system files to be overwritten with unintended data. View CVE Details

Affected Products
Schneider Electric PowerChute Serial Shutdown

Vendor:SuSE, Schneider Electric, Red Hat, Microsoft Product Version:SuSE, Schneider Electric, Red Hat, Microsoft PowerChute Serial Shutdown: <=1.4
Product Status:known_affected


Remediations
Vendor fixSuSE, Schneider Electric, Red Hat, and Microsoft have identified the following specific workarounds and mitigations users can apply to reduce risk: (CVE-2026-2399, CVE-2026-2404, CVE-2026-2405, CVE-2026-2403, CVE-2026-2400, CVE-2026-2401) PowerChute Serial Shutdown Versions 1.4 and prior: Version 1.5
of PowerChute Serial Shutdown includes a fix for this vulnerability and is available for download here: Windows (https://www.se.com/ww/en/download/documen t/SPD-PCSS_WIN_EN/). Linux (https://www.se.com/ww/en/download/document/SPD-PCSS _LNX_EN/).https://www.se.com/ww/en/download/document/SPD-PCSS_WIN_EN/
Vendor fixSuSE, Schneider Electric, Red Hat, and Microsoft have identified the following specific workarounds and mitigations users can apply to reduce risk: (CVE-2026-2399, CVE-2026-2404, CVE-2026-2405, CVE-2026-2403, CVE-2026-2400, CVE-2026-2401) PowerChute Serial Shutdown Versions 1.4 and prior: Version 1.5
of PowerChute Serial Shutdown includes a fix for this vulnerability and is available for download here: Windows (https://www.se.com/ww/en/download/documen t/SPD-PCSS_WIN_EN/). Linux (https://www.se.com/ww/en/download/document/SPD-PCSS _LNX_EN/).https://www.se.com/ww/en/download/document/SPD-PCSS_LNX_EN/
MitigationSpecific instructions and hardening guidelines for these mitigations can be found in the Security Handbook.https://download.schneider-electric.com/f iles?p_Doc_Ref=SPD_CCON-PCSSSH_EN
Vendor fixThe following product versions have been fixed: PowerChute Serial Shutdown Version 1.5 installed on Microsoft Windows are fixed versions for CVE-2026-2399.
Vendor fixPowerChute Serial Shutdown Version 1.5 installed on Red Hat Enterprise Linux are fixed versions for CVE-2026-2399. Vendor fixPowerChute Serial Shutdown Version 1.5 installed on SuSE Linux are fixed versions for CVE-2026-2399.
Vendor fixFor more information see the associated Schneider Electric CPCERT security advisory SEVD-2026-104-01 Multiple Vulnerabilities on PowerChute Serial Shutdown - SEVD-2026-104-01 PDF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf). Multiple Vulnerabilities on PowerChute Serial Shutdown- SEVD-2026-104-01 CSAF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json).https://do wnload.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enDocType=Secu rity+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf
Vendor fixFor more information see the associated Schneider Electric CPCERT security advisory SEVD-2026-104-01 Multiple Vulnerabilities on PowerChute Serial Shutdown - SEVD-2026-104-01 PDF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf). Multiple Vulnerabilities on PowerChute Serial Shutdown- SEVD-2026-104-01 CSAF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json).https://do wnload.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enDocType=Secu rity+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json

Relevant CWE: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
6.1
MEDIUM
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H


4.0
6.9
MEDIUM
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N







CVE-2026-2404

PowerChute is vulnerable to improper output encoding, which may allow crafted input to be reflected in log files in unexpected ways. View CVE Details

Affected Products
Schneider Electric PowerChute Serial Shutdown

Vendor:SuSE, Schneider Electric, Red Hat, Microsoft Product Version:SuSE, Schneider Electric, Red Hat, Microsoft PowerChute Serial Shutdown: <=1.4
Product Status:known_affected


Remediations
Vendor fixSuSE, Schneider Electric, Red Hat, and Microsoft have identified the following specific workarounds and mitigations users can apply to reduce risk: (CVE-2026-2399, CVE-2026-2404, CVE-2026-2405, CVE-2026-2403, CVE-2026-2400, CVE-2026-2401) PowerChute Serial Shutdown Versions 1.4 and prior: Version 1.5
of PowerChute Serial Shutdown includes a fix for this vulnerability and is available for download here: Windows (https://www.se.com/ww/en/download/documen t/SPD-PCSS_WIN_EN/). Linux (https://www.se.com/ww/en/download/document/SPD-PCSS _LNX_EN/).https://www.se.com/ww/en/download/document/SPD-PCSS_WIN_EN/
Vendor fixSuSE, Schneider Electric, Red Hat, and Microsoft have identified the following specific workarounds and mitigations users can apply to reduce risk: (CVE-2026-2399, CVE-2026-2404, CVE-2026-2405, CVE-2026-2403, CVE-2026-2400, CVE-2026-2401) PowerChute Serial Shutdown Versions 1.4 and prior: Version 1.5
of PowerChute Serial Shutdown includes a fix for this vulnerability and is available for download here: Windows (https://www.se.com/ww/en/download/documen t/SPD-PCSS_WIN_EN/). Linux (https://www.se.com/ww/en/download/document/SPD-PCSS _LNX_EN/).https://www.se.com/ww/en/download/document/SPD-PCSS_LNX_EN/
MitigationSpecific instructions and hardening guidelines for these mitigations can be found in the Security Handbook.https://download.schneider-electric.com/f iles?p_Doc_Ref=SPD_CCON-PCSSSH_EN
Vendor fixPowerChute Serial Shutdown Version 1.5 installed on Microsoft Windows are fixed versions for CVE-2026-2404. Vendor fixPowerChute Serial Shutdown Version 1.5 installed on Red Hat Enterprise Linux are fixed versions for CVE-2026-2404. Vendor fixPowerChute Serial Shutdown Version 1.5 installed on SuSE Linux are fixed versions for CVE-2026-2404.
Vendor fixFor more information see the associated Schneider Electric CPCERT security advisory SEVD-2026-104-01 Multiple Vulnerabilities on PowerChute Serial Shutdown - SEVD-2026-104-01 PDF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf). Multiple Vulnerabilities on PowerChute Serial Shutdown- SEVD-2026-104-01 CSAF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json).https://do wnload.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enDocType=Secu rity+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf
Vendor fixFor more information see the associated Schneider Electric CPCERT security advisory SEVD-2026-104-01 Multiple Vulnerabilities on PowerChute Serial Shutdown - SEVD-2026-104-01 PDF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf). Multiple Vulnerabilities on PowerChute Serial Shutdown- SEVD-2026-104-01 CSAF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json).https://do wnload.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enDocType=Secu rity+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json

Relevant CWE: CWE-116 Improper Encoding or Escaping of Output

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
5.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N


4.0
6.9
MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N







CVE-2026-2402

PowerChute is vulnerable to insufficient limitations on repeated authentication attempts across multiple endpoints. View CVE Details

Affected Products
Schneider Electric PowerChute Serial Shutdown

Vendor:SuSE, Schneider Electric, Red Hat, Microsoft Product Version:SuSE, Schneider Electric, Red Hat, Microsoft PowerChute Serial Shutdown: <=1.4
Product Status:known_affected


Remediations
Vendor fix(CVE-2026-2402) PowerChute Serial Shutdown Versions 1.4 and prior: Version 1.5 of PowerChute Serial Shutdown includes a fix for this vulnerability and is available for download here: Windows (https://www.se.com/ww/en/download/document/SPD-PCSS_WIN_EN/). Linux (https://www.se.com/ww/en/download/document/SPD-PCSS_LNX_EN/).https://www.se.co
m/ww/en/download/document/SPD-PCSS_WIN_EN/
Vendor fix(CVE-2026-2402) PowerChute Serial Shutdown Versions 1.4 and prior: Version 1.5 of PowerChute Serial Shutdown includes a fix for this vulnerability and is available for download here: Windows (https://www.se.com/ww/en/download/document/SPD-PCSS_WIN_EN/). Linux (https://www.se.com/ww/en/download/document/SPD-PCSS_LNX_EN/).https://www.se.co
m/ww/en/download/document/SPD-PCSS_LNX_EN/
MitigationSpecific instructions and hardening guidelines for these mitigations can be found in the Security Handbook.https://download.schneider-electric.com/f iles?p_Doc_Ref=SPD_CCON-PCSSSH_EN
Vendor fixPowerChute Serial Shutdown Version 1.5 installed on Microsoft Windows are fixed versions for CVE-2026-2402. Vendor fixPowerChute Serial Shutdown Version 1.5 installed on Red Hat Enterprise Linux are fixed versions for CVE-2026-2402. Vendor fixPowerChute Serial Shutdown Version 1.5 installed on SuSE Linux are fixed versions for CVE-2026-2402.
Vendor fixFor more information see the associated Schneider Electric CPCERT security advisory SEVD-2026-104-01 Multiple Vulnerabilities on PowerChute Serial Shutdown - SEVD-2026-104-01 PDF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf). Multiple Vulnerabilities on PowerChute Serial Shutdown- SEVD-2026-104-01 CSAF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json).https://do wnload.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enDocType=Secu rity+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf
Vendor fixFor more information see the associated Schneider Electric CPCERT security advisory SEVD-2026-104-01 Multiple Vulnerabilities on PowerChute Serial Shutdown - SEVD-2026-104-01 PDF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf). Multiple Vulnerabilities on PowerChute Serial Shutdown- SEVD-2026-104-01 CSAF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json).https://do wnload.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enDocType=Secu rity+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json

Relevant CWE: CWE-307 Improper Restriction of Excessive Authentication Attempts

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
5.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L


4.0
6.9
MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N







CVE-2026-2405

PowerChute is vulnerable to uncontrolled resource consumption when certain system operations are triggered excessively. View CVE Details

Affected Products
Schneider Electric PowerChute Serial Shutdown

Vendor:SuSE, Schneider Electric, Red Hat, Microsoft Product Version:SuSE, Schneider Electric, Red Hat, Microsoft PowerChute Serial Shutdown: <=1.4
Product Status:known_affected


Remediations
Vendor fixSuSE, Schneider Electric, Red Hat, and Microsoft have identified the following specific workarounds and mitigations users can apply to reduce risk: (CVE-2026-2399, CVE-2026-2404, CVE-2026-2405, CVE-2026-2403, CVE-2026-2400, CVE-2026-2401) PowerChute Serial Shutdown Versions 1.4 and prior: Version 1.5
of PowerChute Serial Shutdown includes a fix for this vulnerability and is available for download here: Windows (https://www.se.com/ww/en/download/documen t/SPD-PCSS_WIN_EN/). Linux (https://www.se.com/ww/en/download/document/SPD-PCSS _LNX_EN/).https://www.se.com/ww/en/download/document/SPD-PCSS_WIN_EN/
Vendor fixSuSE, Schneider Electric, Red Hat, and Microsoft have identified the following specific workarounds and mitigations users can apply to reduce risk: (CVE-2026-2399, CVE-2026-2404, CVE-2026-2405, CVE-2026-2403, CVE-2026-2400, CVE-2026-2401) PowerChute Serial Shutdown Versions 1.4 and prior: Version 1.5
of PowerChute Serial Shutdown includes a fix for this vulnerability and is available for download here: Windows (https://www.se.com/ww/en/download/documen t/SPD-PCSS_WIN_EN/). Linux (https://www.se.com/ww/en/download/document/SPD-PCSS _LNX_EN/).https://www.se.com/ww/en/download/document/SPD-PCSS_LNX_EN/
MitigationSpecific instructions and hardening guidelines for these mitigations can be found in the Security Handbook.https://download.schneider-electric.com/f iles?p_Doc_Ref=SPD_CCON-PCSSSH_EN
Vendor fixPowerChute Serial Shutdown Version 1.5 installed on Microsoft Windows are fixed versions for CVE-2026-2405. Vendor fixPowerChute Serial Shutdown Version 1.5 installed on Red Hat Enterprise Linux are fixed versions for CVE-2026-2405. Vendor fixPowerChute Serial Shutdown Version 1.5 installed on SuSE Linux are fixed versions for CVE-2026-2405.
Vendor fixFor more information see the associated Schneider Electric CPCERT security advisory SEVD-2026-104-01 Multiple Vulnerabilities on PowerChute Serial Shutdown - SEVD-2026-104-01 PDF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf). Multiple Vulnerabilities on PowerChute Serial Shutdown- SEVD-2026-104-01 CSAF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json).https://do wnload.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enDocType=Secu rity+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf
Vendor fixFor more information see the associated Schneider Electric CPCERT security advisory SEVD-2026-104-01 Multiple Vulnerabilities on PowerChute Serial Shutdown - SEVD-2026-104-01 PDF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf). Multiple Vulnerabilities on PowerChute Serial Shutdown- SEVD-2026-104-01 CSAF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json).https://do wnload.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enDocType=Secu rity+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json

Relevant CWE: CWE-400 Uncontrolled Resource Consumption

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
4.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L


4.0
5.3
MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N







CVE-2026-2403

PowerChute is vulnerable to improper validation of quantity?related inputs, which can cause event and data logs to be truncated. As a result, important audit information may be lost, reducing visibility into system behavior. View CVE Details

Affected Products
Schneider Electric PowerChute Serial Shutdown

Vendor:SuSE, Schneider Electric, Red Hat, Microsoft Product Version:SuSE, Schneider Electric, Red Hat, Microsoft PowerChute Serial Shutdown: <=1.4
Product Status:known_affected


Remediations
Vendor fixSuSE, Schneider Electric, Red Hat, and Microsoft have identified the following specific workarounds and mitigations users can apply to reduce risk: (CVE-2026-2399, CVE-2026-2404, CVE-2026-2405, CVE-2026-2403, CVE-2026-2400, CVE-2026-2401) PowerChute Serial Shutdown Versions 1.4 and prior: Version 1.5
of PowerChute Serial Shutdown includes a fix for this vulnerability and is available for download here: Windows (https://www.se.com/ww/en/download/documen t/SPD-PCSS_WIN_EN/). Linux (https://www.se.com/ww/en/download/document/SPD-PCSS _LNX_EN/).https://www.se.com/ww/en/download/document/SPD-PCSS_WIN_EN/
Vendor fixSuSE, Schneider Electric, Red Hat, and Microsoft have identified the following specific workarounds and mitigations users can apply to reduce risk: (CVE-2026-2399, CVE-2026-2404, CVE-2026-2405, CVE-2026-2403, CVE-2026-2400, CVE-2026-2401) PowerChute Serial Shutdown Versions 1.4 and prior: Version 1.5
of PowerChute Serial Shutdown includes a fix for this vulnerability and is available for download here: Windows (https://www.se.com/ww/en/download/documen t/SPD-PCSS_WIN_EN/). Linux (https://www.se.com/ww/en/download/document/SPD-PCSS _LNX_EN/).https://www.se.com/ww/en/download/document/SPD-PCSS_LNX_EN/
MitigationSpecific instructions and hardening guidelines for these mitigations can be found in the Security Handbook.https://download.schneider-electric.com/f iles?p_Doc_Ref=SPD_CCON-PCSSSH_EN
Vendor fixPowerChute Serial Shutdown Version 1.5 installed on Microsoft Windows are fixed versions for CVE-2026-2403. Vendor fixPowerChute Serial Shutdown Version 1.5 installed on Red Hat Enterprise Linux are fixed versions for CVE-2026-2403. Vendor fixPowerChute Serial Shutdown Version 1.5 installed on SuSE Linux are fixed versions for CVE-2026-2403.
Vendor fixFor more information see the associated Schneider Electric CPCERT security advisory SEVD-2026-104-01 Multiple Vulnerabilities on PowerChute Serial Shutdown - SEVD-2026-104-01 PDF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf). Multiple Vulnerabilities on PowerChute Serial Shutdown- SEVD-2026-104-01 CSAF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json).https://do wnload.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enDocType=Secu rity+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf
Vendor fixFor more information see the associated Schneider Electric CPCERT security advisory SEVD-2026-104-01 Multiple Vulnerabilities on PowerChute Serial Shutdown - SEVD-2026-104-01 PDF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf). Multiple Vulnerabilities on PowerChute Serial Shutdown- SEVD-2026-104-01 CSAF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json).https://do wnload.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enDocType=Secu rity+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json

Relevant CWE: CWE-1284 Improper Validation of Specified Quantity in Input

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
4.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N


4.0
5.3
MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N







CVE-2026-2400

PowerChute is vulnerable to improper handling of newline sequences in certain inputs, enabling unexpected modification of configuration?related data. View CVE Details

Affected Products
Schneider Electric PowerChute Serial Shutdown

Vendor:SuSE, Schneider Electric, Red Hat, Microsoft Product Version:SuSE, Schneider Electric, Red Hat, Microsoft PowerChute Serial Shutdown: <=1.4
Product Status:known_affected


Remediations
Vendor fixSuSE, Schneider Electric, Red Hat, and Microsoft have identified the following specific workarounds and mitigations users can apply to reduce risk: (CVE-2026-2399, CVE-2026-2404, CVE-2026-2405, CVE-2026-2403, CVE-2026-2400, CVE-2026-2401) PowerChute Serial Shutdown Versions 1.4 and prior: Version 1.5
of PowerChute Serial Shutdown includes a fix for this vulnerability and is available for download here: Windows (https://www.se.com/ww/en/download/documen t/SPD-PCSS_WIN_EN/). Linux (https://www.se.com/ww/en/download/document/SPD-PCSS _LNX_EN/).https://www.se.com/ww/en/download/document/SPD-PCSS_WIN_EN/
Vendor fixSuSE, Schneider Electric, Red Hat, and Microsoft have identified the following specific workarounds and mitigations users can apply to reduce risk: (CVE-2026-2399, CVE-2026-2404, CVE-2026-2405, CVE-2026-2403, CVE-2026-2400, CVE-2026-2401) PowerChute Serial Shutdown Versions 1.4 and prior: Version 1.5
of PowerChute Serial Shutdown includes a fix for this vulnerability and is available for download here: Windows (https://www.se.com/ww/en/download/documen t/SPD-PCSS_WIN_EN/). Linux (https://www.se.com/ww/en/download/document/SPD-PCSS _LNX_EN/).https://www.se.com/ww/en/download/document/SPD-PCSS_LNX_EN/
MitigationSpecific instructions and hardening guidelines for these mitigations can be found in the Security Handbook.https://download.schneider-electric.com/f iles?p_Doc_Ref=SPD_CCON-PCSSSH_EN
Vendor fixPowerChute Serial Shutdown Version 1.5 installed on Microsoft Windows are fixed versions for CVE-2026-2400. Vendor fixPowerChute Serial Shutdown Version 1.5 installed on Red Hat Enterprise Linux are fixed versions for CVE-2026-2400. Vendor fixPowerChute Serial Shutdown Version 1.5 installed on SuSE Linux are fixed versions for CVE-2026-2400.
Vendor fixFor more information see the associated Schneider Electric CPCERT security advisory SEVD-2026-104-01 Multiple Vulnerabilities on PowerChute Serial Shutdown - SEVD-2026-104-01 PDF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf). Multiple Vulnerabilities on PowerChute Serial Shutdown- SEVD-2026-104-01 CSAF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json).https://do wnload.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enDocType=Secu rity+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf
Vendor fixFor more information see the associated Schneider Electric CPCERT security advisory SEVD-2026-104-01 Multiple Vulnerabilities on PowerChute Serial Shutdown - SEVD-2026-104-01 PDF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf). Multiple Vulnerabilities on PowerChute Serial Shutdown- SEVD-2026-104-01 CSAF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json).https://do wnload.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enDocType=Secu rity+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json

Relevant CWE: CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
4.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L


4.0
5.3
MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N







CVE-2026-2401

PowerChute is vulnerable to improper logging of sensitive information when certain user?triggered operations occur. View CVE Details

Affected Products
Schneider Electric PowerChute Serial Shutdown

Vendor:SuSE, Schneider Electric, Red Hat, Microsoft Product Version:SuSE, Schneider Electric, Red Hat, Microsoft PowerChute Serial Shutdown: <=1.4
Product Status:known_affected


Remediations
Vendor fixSuSE, Schneider Electric, Red Hat, and Microsoft have identified the following specific workarounds and mitigations users can apply to reduce risk: (CVE-2026-2399, CVE-2026-2404, CVE-2026-2405, CVE-2026-2403, CVE-2026-2400, CVE-2026-2401) PowerChute Serial Shutdown Versions 1.4 and prior: Version 1.5
of PowerChute Serial Shutdown includes a fix for this vulnerability and is available for download here: Windows (https://www.se.com/ww/en/download/documen t/SPD-PCSS_WIN_EN/). Linux (https://www.se.com/ww/en/download/document/SPD-PCSS _LNX_EN/).https://www.se.com/ww/en/download/document/SPD-PCSS_WIN_EN/
Vendor fixSuSE, Schneider Electric, Red Hat, and Microsoft have identified the following specific workarounds and mitigations users can apply to reduce risk: (CVE-2026-2399, CVE-2026-2404, CVE-2026-2405, CVE-2026-2403, CVE-2026-2400, CVE-2026-2401) PowerChute Serial Shutdown Versions 1.4 and prior: Version 1.5
of PowerChute Serial Shutdown includes a fix for this vulnerability and is available for download here: Windows (https://www.se.com/ww/en/download/documen t/SPD-PCSS_WIN_EN/). Linux (https://www.se.com/ww/en/download/document/SPD-PCSS _LNX_EN/).https://www.se.com/ww/en/download/document/SPD-PCSS_LNX_EN/
MitigationSpecific instructions and hardening guidelines for these mitigations can be found in the Security Handbook.https://download.schneider-electric.com/f iles?p_Doc_Ref=SPD_CCON-PCSSSH_EN
Vendor fixPowerChute Serial Shutdown Version 1.5 installed on Microsoft Windows are fixed versions for CVE-2026-2401. Vendor fixPowerChute Serial Shutdown Version 1.5 installed on Red Hat Enterprise Linux are fixed versions for CVE-2026-2401. Vendor fixPowerChute Serial Shutdown Version 1.5 installed on SuSE Linux are fixed versions for CVE-2026-2401.
Vendor fixFor more information see the associated Schneider Electric CPCERT security advisory SEVD-2026-104-01 Multiple Vulnerabilities on PowerChute Serial Shutdown - SEVD-2026-104-01 PDF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf). Multiple Vulnerabilities on PowerChute Serial Shutdown- SEVD-2026-104-01 CSAF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json).https://do wnload.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enDocType=Secu rity+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf
Vendor fixFor more information see the associated Schneider Electric CPCERT security advisory SEVD-2026-104-01 Multiple Vulnerabilities on PowerChute Serial Shutdown - SEVD-2026-104-01 PDF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf). Multiple Vulnerabilities on PowerChute Serial Shutdown- SEVD-2026-104-01 CSAF Version (https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enD
ocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json).https://do wnload.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enDocType=Secu rity+and+Safety+Notice&p_File_Name=sevd-2026-104-01.json

Relevant CWE: CWE-532 Insertion of Sensitive Information into Log File

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
2.8
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N


4.0
2.4
LOW
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N








Acknowledgments

Schneider Electric reported these vulnerabilities to CISA


Legal Notice and Terms of Use
This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy).

Recommended Practices
CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs). Recognize VPNs may have vulnerabilities, should be updated to the most recent version available, and are only as secure as the connected devices.
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices
on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies
for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation
Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.
No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.

Revision History

Initial Release Date: 2026-04-14




Date
Revision
Summary




2026-04-14
1
Initial Publication


2026-07-09
2
Initial Republication of Schneider Electric CPCERT SEVD-2026-104-01




Legal Notice and Terms of Use

https://www.cisa.gov/news-events/ics-advisories/icsa-26-190-02

2026-07-09 12:00 UTC

--- BBBS/LiR v4.10 Toy-7
* Origin: LISTS. from TCOB1 READ ONLY (2:263/1)

Schneider Electric PowerChute Serial Shutdown

View CSAF
Summary
Schneider Electric is aware of vulnerabilities in its PowerChute Serial Shutdown product. The PowerChute Serial Shutdown product is a UPS management software enabling graceful system shutdown and energy management capabilities for desktops, servers and workstations. Failure to apply the remediation provided below may risk improper authentication validation which could result in disruption of operations and access to system data. The following versions of Schneider Electric PowerChute Serial Shutdown are affected:

PowerChute Serial Shutdown vers:intdot/<=1.5, 1.6 (CVE-2026-13348)





CVSS
Vendor
Equipment
Vulnerabilities




v3 5.3
Schneider Electric
Schneider Electric PowerChute Serial Shutdown Improper Restriction of Excessive Authentication Attempts




Background

Critical Infrastructure Sectors: Commercial Facilities, Critical Manufacturing, Energy, Information Technology
Countries/Areas Deployed: Worldwide Company Headquarters Location: France


Vulnerabilities

Expand All +

CVE-2026-13348

CWE-307: Improper Restriction of Excessive Authentication Attempts vulnerability exists that could allow an attacker to gain unauthorized access to a user account by performing an arbitrary number of authentication attempts when redirect handling is disabled. View CVE Details

Affected Products
Schneider Electric PowerChute Serial Shutdown

Vendor:Schneider Electric
Product Version:PowerChute Serial Shutdown Version 1.5 and prior Product Status:fixed, known_affected


Remediations
Vendor fixVersion v1.6 of PowerChute Serial Shutdown includes a fix for these vulnerabilities and is available for download here: ? Windows: https://www.se.com/ww/en/download/document/SPD-PCSS_WIN_EN/ Reboot needed: Upon installation, the service is automatically restarted. A customer can validate a successful install by checking the version information in the Control Panel or on the About page within PCSS after logging in. Specific instructions and hardening guidelines for these remediations can be found in the Security Handbook.
Vendor fixVersion v1.6 of PowerChute Serial Shutdown includes a fix for these vulnerabilities and is available for download here: ? Linux: https://www.se.com/ww/en/download/document/SPD-PCSS_LNX_EN/ Reboot needed: Upon installation, the service is automatically restarted. A customer can validate a successful install by checking the version information in the Control Panel or on the About page within PCSS after logging in. Specific instructions and hardening guidelines for these remediations can be found in the Security Handbook.
For more information see the associated Schneider Electric security advisory Improper Restriction of Excessive Authentication Attempts vulnerability on PowerChute Serial Shutdown - SEVD-2026-223-01 CSAF Version, Improper Restriction of Excessive Authentication Attempts vulnerability on PowerChute Serial Shutdown - SEVD-2026-223-01 PDF Version.

Relevant CWE: CWE-307 Improper Restriction of Excessive Authentication Attempts

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
5.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N








Acknowledgments

Schneider Electric CPCERT reported this vulnerability to CISA.


General Security Recommendations
Schneider Electric strongly recommends the following industry cybersecurity best practices.

Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network. Install physical controls so no unauthorized personnel can access your industrial control and safety systems, components, peripheral equipment, and networks.
Place all controllers in locked cabinets and never leave them in the ?Program? mode.
Never connect programming software to any network other than the network intended for that device.
Scan all methods of mobile data exchange with the isolated network such as CDs, USB drives, etc. before use in the terminals or any node connected to these
networks.
Never allow mobile devices that have connected to any other network besides the intended network to connect to the safety or control networks without proper sanitation.
Minimize network exposure for all control system devices and systems and ensure that they are not accessible from the Internet. When remote access is required, use secure methods, such as Virtual Private Networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices.

For more information refer to the Schneider Electric Recommended Cybersecurity Best Practices document.

For More Information
This document provides an overview of the identified vulnerability or vulnerabilities and actions required to mitigate. For more details and assistance on how to protect your installation, contact your local Schneider Electric representative or Schneider Electric Industrial Cybersecurity Services: https://www.se.com/ww/en/work/solutions/cybersecurity/. These organizations will be fully aware of this situation and can support you through the process. For further information related to cybersecurity in Schneider Electric?s products, visit the company?s cybersecurity support portal page: https://www.se.com/ww/en/work/support/cybersecurity/overview.jsp

LEGAL DISCLAIMER
THIS NOTIFICATION DOCUMENT, THE INFORMATION CONTAINED HEREIN, AND ANY MATERIALS LINKED FROM IT (COLLECTIVELY, THIS ?NOTIFICATION?) ARE INTENDED TO HELP PROVIDE AN OVERVIEW OF THE IDENTIFIED SITUATION AND SUGGESTED MITIGATION ACTIONS, REMEDIATION, FIX, AND/OR GENERAL SECURITY RECOMMENDATIONS AND IS PROVIDED ON AN
?AS-IS? BASIS WITHOUT WARRANTY OR GUARANTEE OF ANY KIND. SCHNEIDER ELECTRIC DISCLAIMS ALL WARRANTIES RELATING TO THIS NOTIFICATION, EITHER EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. SCHNEIDER ELECTRIC MAKES NO WARRANTY THAT THE NOTIFICATION WILL RESOLVE THE IDENTIFIED SITUATION. IN NO EVENT SHALL SCHNEIDER ELECTRIC BE LIABLE FOR ANY DAMAGES OR LOSSES WHATSOEVER IN CONNECTION WITH THIS NOTIFICATION, INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF SCHNEIDER ELECTRIC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. YOUR USE OF THIS NOTIFICATION IS AT YOUR OWN RISK, AND YOU ARE SOLELY LIA
BLE FOR ANY DAMAGES TO YOUR SYSTEMS OR ASSETS OR OTHER LOSSES THAT MAY RESULT FROM YOUR USE OF THIS NOTIFICATION. SCHNEIDER ELECTRIC RESERVES THE RIGHT TO UPDATE OR CHANGE THIS NOTIFICATION AT ANY TIME AND IN ITS SOLE DISCRETION

About Schneider Electric
Schneider's purpose is to create Impact by empowering all to make the most of our energy and resources, bridging progress and sustainability for all. We call this Life Is On. Our mission is to be the trusted partner in Sustainability and Efficiency. We are a global industrial technology leader bringing world-leading expertise in electrification, automation and digitization to smart industries, resilient infrastructure, future-proof data centers, intelligent buildings, and intuitive homes. Anchored by our deep domain expertise, we provide integrated end-to-end lifecycle AI enabled Industrial IoT solutions with connected products, automation, software and services, delivering digital twins to enable profitable growth for our customers. We are a people company with an ecosystem of 150,000 colleagues and more than a million partners operating in over 100 countries to ensure proximity to our customers and stakeholders. We embrace diversity and inclusion in everything we do, guided by our meaningful purpose of a s
ustainable future for all. www.se.com

Legal Notice and Terms of Use
This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy).

Recommended Practices
CISA recommends users take defensive measures to minimize the exploitation risk of these vulnerabilities.

Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolate them from business networks.
When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices.

CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices
on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies
for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

Advisory Conversion Disclaimer
This ICSA is a verbatim republication of Schneider Electric CPCERT SEVD-2026-223-01 from a direct conversion of the vendor's Common Security
Advisory Framework (CSAF) advisory. This is republished to CISA's website as a means of increasing visibility and is provided "as-is" for informational purposes only. CISA is not responsible for the editorial or technical accuracy of republished advisories and provides no warranties of any kind regarding any information contained within this advisory. Further, CISA does not endorse any commercial product or service. Please contact Schneider Electric CPCERT directly for any questions regarding this advisory. Revision History

Initial Release Date: 2026-08-11




Date
Revision
Summary




2026-08-11
1
Original Release


2026-09-17
2
Initial CISA Republication of Schneider Electric CPCERT SEVD-2026-223-01 advisory




Legal Notice and Terms of Use

https://www.cisa.gov/news-events/ics-advisories/icsa-26-260-07

2026-09-17 12:00 UTC

--- BBBS/LiR v4.10 Toy-7
* Origin: LISTS. from TCOB1 READ ONLY (2:263/1)