Siemens CADRA

View CSAF
Summary
CADRA is affected by multiple zlib and Foxit vulnerabilities. Siemens has released a new version for CADRA and recommends to update to the latest version. Siemens is preparing further fix versions and recommends specific countermeasures for products where fixes are not, or not yet available. The following versions of Siemens CADRA are affected:

CADRA vers:intdot/<2511, vers:all/*





CVSS
Vendor
Equipment
Vulnerabilities




v3 9.8
Siemens
Siemens CADRA
Improper Input Validation, Incorrect Bitwise Shift of Integer, Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow'), Integer Overflow or Wraparound, Access of Resource Using Incompatible Type ('Type Confusion')




Background

Critical Infrastructure Sectors: Chemical, Commercial Facilities, Communications, Energy
Countries/Areas Deployed: Worldwide Company Headquarters Location: Germany


Vulnerabilities

Expand All +

CVE-2005-2096

zlib 1.2 and later versions allows remote attackers to cause a denial of service (crash) via a crafted compressed stream with an incomplete code description of a length greater than 1, which leads to a buffer overflow, as demonstrated using a crafted PNG file. View CVE Details

Affected Products
Siemens CADRA

Vendor:Siemens
Product Version:CADRA < V2511
Product Status:known_affected


Remediations
Vendor fixUpdate to V2511 or later version

Relevant CWE: CWE-20 Improper Input Validation

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
7.3
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L







CVE-2016-9840

inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic. View CVE Details

Affected Products
Siemens CADRA

Vendor:Siemens
Product Version:CADRA < V2511
Product Status:known_affected


Remediations
Vendor fixUpdate to V2511 or later version

Relevant CWE: CWE-20 Improper Input Validation

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H







CVE-2016-9841

inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic. View CVE Details

Affected Products
Siemens CADRA

Vendor:Siemens
Product Version:CADRA < V2511
Product Status:known_affected


Remediations
Vendor fixUpdate to V2511 or later version

Relevant CWE: CWE-20 Improper Input Validation

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H







CVE-2016-9842

The inflateMark function in inflate.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving left shifts of negative integers.
View CVE Details

Affected Products
Siemens CADRA

Vendor:Siemens
Product Version:CADRA < V2511
Product Status:known_affected


Remediations
Vendor fixUpdate to V2511 or later version

Relevant CWE: CWE-1335 Incorrect Bitwise Shift of Integer

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H







CVE-2017-14919

Node.js before 4.8.5, 6.x before 6.11.5, and 8.x before 8.8.0 allows remote attackers to cause a denial of service (uncaught exception and crash) by leveraging a change in the zlib module 1.2.9 making 8 an invalid value for the windowBits parameter.
View CVE Details

Affected Products
Siemens CADRA

Vendor:Siemens
Product Version:CADRA < V2511
Product Status:known_affected


Remediations
Vendor fixUpdate to V2511 or later version

Relevant CWE: CWE-20 Improper Input Validation

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.0
7.5
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H







CVE-2018-25032

zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches. View CVE Details

Affected Products
Siemens CADRA

Vendor:Siemens
Product Version:CADRA < V2511
Product Status:known_affected


Remediations
Vendor fixUpdate to V2511 or later version

Relevant CWE: CWE-787 Out-of-bounds Write

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H







CVE-2022-37434

zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHeader (e.g., see the nodejs/node reference). View CVE Details

Affected Products
Siemens CADRA

Vendor:Siemens
Product Version:CADRA < V2511
Product Status:known_affected


Remediations
Vendor fixUpdate to V2511 or later version

Relevant CWE: CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H







CVE-2023-45853

MiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in zipOpenNewFileInZip4_64 via a long filename, comment, or extra field. NOTE: MiniZip is not a supported part of the zlib product. NOTE: pyminizip through 0.2.6 is also vulnerable because it bundles an affected zlib version, and exposes the applicable MiniZip code through its compress API. View CVE Details

Affected Products
Siemens CADRA

Vendor:Siemens
Product Version:CADRA < V2511
Product Status:known_affected


Remediations
Vendor fixUpdate to V2511 or later version

Relevant CWE: CWE-190 Integer Overflow or Wraparound

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H







CVE-2025-10585

Type confusion in V8 in Google Chrome prior to 140.0.7339.185 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
View CVE Details

Affected Products
Siemens CADRA

Vendor:Siemens
Product Version:CADRA
Product Status:known_affected


Remediations
MitigationBlock access to untrusted or external web content from sensitive systems
None availableCurrently no fix is available

Relevant CWE: CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H







CVE-2025-13223

Type Confusion in V8 in Google Chrome prior to 142.0.7444.175 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
View CVE Details

Affected Products
Siemens CADRA

Vendor:Siemens
Product Version:CADRA
Product Status:known_affected


Remediations
MitigationBlock access to untrusted or external web content from sensitive systems
None availableCurrently no fix is available

Relevant CWE: CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H







CVE-2026-22184

zlib versions up to and including 1.3.1.2 include a global buffer overflow in the untgz utility located under contrib/untgz. The vulnerability is limited to the standalone demonstration utility and does not affect the core zlib compression library. The flaw occurs when a user executes the untgz command with an excessively long archive name supplied via the command line, leading to an out-of-bounds write in a fixed-size global buffer. View CVE Details

Affected Products
Siemens CADRA

Vendor:Siemens
Product Version:CADRA
Product Status:known_affected


Remediations
None availableCurrently no fix is available

Relevant CWE: CWE-787 Out-of-bounds Write

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
0
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:N








Acknowledgments

Siemens ProductCERT reported these vulnerabilities to CISA.


General Recommendations
As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity

Additional Resources
For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories

Terms of Use
The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.

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 this vulnerability.
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 Siemens ProductCERT SSA-470355 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 Siemens ProductCERT directly for any questions regarding this advisory.
Revision History

Initial Release Date: 2026-07-14




Date
Revision
Summary




2026-07-14
1
Publication Date


2026-07-21
2
Initial CISA Republication of Siemens ProductCERT SSA-470355 advisory




Legal Notice and Terms of Use

https://www.cisa.gov/news-events/ics-advisories/icsa-26-202-06

2026-07-21 12:00 UTC

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