CVE-2026-5476
NASA cFS cfe_tbl_passthru_codec.c CFE_TBL_ValidateCodecLoadSize integer overflow
- State
- Published
- Severity
- 2.1 Low
- Published
- Apr 3, 2026
- Updated
- Apr 4, 2026
- Reserved
- Apr 3, 2026
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
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 2.1 Low | 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 | VulDB |
| 3.1 | 4.6 Medium | 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 | VulDB |
| 3.0 | 4.6 Medium | 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 | VulDB |
| 2.0 | 4.0 Medium | AV:A/AC:H/Au:S/C:P/I:P/A:P/E:ND/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
cFSNASA |
|
References
- VDB-355080 | NASA cFS cfe_tbl_passthru_codec.c CFE_TBL_ValidateCodecLoadSize integer overflowvdb-entrytechnical-description
- VDB-355080 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #781971 | NASA cFS 7.0.0 Integer overflow in CFE_TBL_ValidateCodecLoadSize bypasses bounthird-party-advisory
- https://github.com/nasa/cFS/issues/954issue-tracking
- https://github.com/nasa/cFS/product
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