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CVE-2026-5476
NASA cFS cfe_tbl_passthru_codec.c CFE_TBL_ValidateCodecLoadSize integer overflow
Low2.1EPSS 0.22%
- Published
- Updated
- Reserved
- Assigned by
- VulDB
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| VulDBCNA (assigner) | 4.0 | Low2.1 | CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X |
| VulDBCNA (assigner) | 3.1 | Medium4.6 | CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R |
| VulDBCNA (assigner) | 3.0 | Medium4.6 | CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R |
| VulDBCNA (assigner) | 2.0 | Medium4.0 | AV:A/AC:H/Au:S/C:P/I:P/A:P/E:ND/RL:ND/RC:UR |
| NVDNVD · Analyzed | 4.0 | Low2.1 | CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 0.22% · top 88% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.1.
Weakness
Affected products
References (5)
- VDB-355080 | NASA cFS cfe_tbl_passthru_codec.c CFE_TBL_ValidateCodecLoadSize integer overflow (opens in a new tab)vdb-entrytechnical-description
- VDB-355080 | CTI Indicators (IOB, IOC, IOA) (opens in a new tab)signaturepermissions-required
- Submit #781971 | NASA cFS 7.0.0 Integer overflow in CFE_TBL_ValidateCodecLoadSize bypasses boun (opens in a new tab)third-party-advisory
- https://github.com/nasa/cFS/issues/954 (opens in a new tab)issue-tracking
- https://github.com/nasa/cFS/ (opens in a new tab)product
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-5476)Record last updated .