NASA Core Flight System (cFS) Health & Safety (HS) Application
View CSAF
Summary
Successful exploitation of this vulnerability could allow an attacker to cause a denial-of-service condition.
The following versions of NASA Core Flight System (cFS) Health & Safety (HS) Application are affected:
Core Flight System (cFS) Health & Safety (HS) Application <=v7.0.1 (CVE-2026-18064)
CVSS
Vendor
Equipment
Vulnerabilities
v3 7.5
NASA
NASA Core Flight System (cFS) Health & Safety (HS) Application
NULL Pointer Dereference
Background
Critical Infrastructure Sectors: Transportation Systems Countries/Areas Deployed: Worldwide Company Headquarters Location: United States
Vulnerabilities
Expand All +
CVE-2026-18064
An incomplete fix for CVE-2026-15352 in the NASA core Flight System (cFS) Health and Safety (HS) application leaves a separate NULL pointer dereference reachable in versions through 7.0.1. An attacker who can trigger the affected command under specific conditions could cause the HS application to crash, resulting in a denial-of-service condition and processor reset. View CVE Details
Affected Products
NASA Core Flight System (cFS) Health & Safety (HS) Application
Vendor:NASA
Product Version:NASA Core Flight System (cFS) Health & Safety (HS) Application: <=v7.0.1
Product Status:known_affected
Remediations
MitigationNASA reports that an official fix is currently under development and is expected to be included in a future software release. MitigationAs an interim mitigation, users can update their HS app from the HS repo (
https://github.com/nasa/HS) to the latest dev branch. The fix is in the dev branch starting at commit 828855f971db4b6714367ed0a970f52dbeab2965
https://g ithub.com/nasa/HS
Relevant CWE: CWE-476 NULL Pointer Dereference
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
4.0
8.2
HIGH
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Acknowledgments
Michael Holmquist of Hasp Labs reported this vulnerability 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 this vulnerability. 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), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is 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/ics. 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/ics 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 this vulnerability has been reported to CISA at this time.
Revision History
Initial Release Date: 2026-07-30
Date
Revision
Summary
2026-07-30
1
Initial Publication
Legal Notice and Terms of Use
https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-06
2026-07-30 12:00 UTC
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