Integer overflow in Nasa Cfs
CVE-2026-5476
A vulnerability was identified in NASA cFS up to 7.0.0 on 32-bit. Affected is the function CFE_TBL_ValidateCodecLoadSize of the file cfe/modules/tbl/fsw/src/cfe_tbl_passthru_codec.c. The manipulation leads to integer overflow. The complexi…
EPSS: 0.000 (11.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Nasa Cfs — versions 7.0
- Nasa Core_flight_system
Weakness classification (CWE)
References
- cna@vuldb.com (Product, product)
- cna@vuldb.com (issue-tracking, Issue Tracking)
- Submit #781971 | NASA cFS 7.0.0 Integer overflow in CFE_TBL_ValidateCodecLoadSize bypasses boun (VDB Entry, Third Party Advisory, third-party-advisory)
- VDB-355080 | NASA cFS cfe_tbl_passthru_codec.c CFE_TBL_ValidateCodecLoadSize integer overflow (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- VDB-355080 | CTI Indicators (IOB, IOC, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
Frequently asked questions
- What is CVE-2026-5476?
- CVE-2026-5476 is a medium-severity vulnerability in Nasa Cfs, classified under CWE-189. CVSS score: 4.6/10. Published 2026-04-03.
- How severe is CVE-2026-5476?
- Medium severity. CVSS v3 base score is 4.6 out of 10.