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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.

PUBLISHED Reserved 2026-04-03 | Published 2026-04-03 | Updated 2026-04-04 | Assigner VulDB




LOW: 2.1CVSS: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
MEDIUM: 4.6CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R
MEDIUM: 4.6CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R
4.0AV:A/AC:H/Au:S/C:P/I:P/A:P/E:ND/RL:ND/RC:UR

Problem types

Integer Overflow

Numeric Error

Product status

7.0
affected

Timeline

2026-04-03:Advisory disclosed
2026-04-03:VulDB entry created
2026-04-03:VulDB entry last update

Credits

0rbitingZer0 (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/355080 (VDB-355080 | NASA cFS cfe_tbl_passthru_codec.c CFE_TBL_ValidateCodecLoadSize integer overflow) vdb-entry technical-description

vuldb.com/vuln/355080/cti (VDB-355080 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/781971 (Submit #781971 | NASA cFS 7.0.0 Integer overflow in CFE_TBL_ValidateCodecLoadSize bypasses boun) third-party-advisory

github.com/nasa/cFS/issues/954 issue-tracking

github.com/nasa/cFS/ product

cve.org (CVE-2026-5476)

nvd.nist.gov (CVE-2026-5476)

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