Medium 5.5Published Apr 3, 2026

CVE-2026-5475NASA cFS CCSDS Header Size cfe_sb_priv.c CFE_SB_TransmitMsg memory corruption

Updated under an hour ago (Oct 26, 2026, 2:30 PM ET)

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It affects NASA cFS and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for NASA cFS

Exploited in the last 30 days

A vulnerability was determined in NASA cFS up to 7.0.0. This impacts the function CFE_SB_TransmitMsg of the file cfe_sb_priv.c of the component CCSDS Header Size Handler. Executing a manipulation can lead to memory corruption. The project was informed of the problem early through an issue report but has not responded yet.

CVSS: 5.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R
Weakness (CWE): CWE-119
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Analyzed
Record last updated: Apr 3, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

NASA cFS nasa:cfs	7.0	CNA record
nasa core_flight_system nasa:core_flight_system	through 7.0.0	NVD

References

References

https://vuldb.com/vuln/355079	vdb-entry, technical-description, third-party-advisory
https://vuldb.com/vuln/355079/cti	signature, permissions-required, vdb-entry
https://vuldb.com/submit/781951	third-party-advisory, vdb-entry
https://github.com/nasa/cFS/issues/953	issue-tracking
https://github.com/nasa/cFS/	product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.