What’s Vulnerable › Vulnerabilities

CVE-2026-5476: NASA cFS cfe_tbl_passthru_codec.c CFE_TBL_ValidateCodecLoadSize integer overflow

• Severity: medium (CVSS 4.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% 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-189

Description

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 complexity of an attack is rather high. The exploitability is told to be difficult. A fix is planned for the upcoming version milestone of the project.

Affected products

• nasa Core Flight System: through 7.0.0

References

• https://github.com/nasa/cFS/
• https://github.com/nasa/cFS/issues/954
• https://vuldb.com/submit/781971
• https://vuldb.com/vuln/355080
• https://vuldb.com/vuln/355080/cti

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