What’s Vulnerable › Vulnerabilities

CVE-2026-5474: NASA cFS CCSDS Packet Header to_lab_passthru_encode.c CFE_MSG_GetSize heap-based overflow

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-03 · updated 2026-07-24
• Weakness: CWE-119

Description

A vulnerability was found in NASA cFS up to 7.0.0. This affects the function CFE_MSG_GetSize of the file apps/to_lab/fsw/src/to_lab_passthru_encode.c of the component CCSDS Packet Header Handler. Performing a manipulation results in heap-based buffer overflow. The attacker must have access to the local network to execute the attack. The project was informed of the problem early through an issue report but has not responded yet.

Affected products

• nasa Core Flight System: through 7.0.0

References

• https://github.com/nasa/cFS/
• https://github.com/nasa/cFS/issues/952
• https://vuldb.com/submit/781950
• https://vuldb.com/vuln/355078
• https://vuldb.com/vuln/355078/cti

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