{"id":"CVE-2026-5476","summary":"NASA cFS cfe_tbl_passthru_codec.c CFE_TBL_ValidateCodecLoadSize integer overflow","details":"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.","modified":"2026-08-12T03:51:47.162169286Z","published":"2026-04-03T17:30:12.629Z","database_specific":{"cna_assigner":"VulDB","cwe_ids":["CWE-189","CWE-190"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5476.json"},"references":[{"type":"WEB","url":"https://github.com/nasa/cFS/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5476.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5476"},{"type":"ADVISORY","url":"https://vuldb.com/submit/781971"},{"type":"ADVISORY","url":"https://vuldb.com/vuln/355080"},{"type":"REPORT","url":"https://github.com/nasa/cFS/issues/954"},{"type":"REPORT","url":"https://vuldb.com/vuln/355080/cti"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nasa/cfe","events":[{"introduced":"0"},{"last_affected":"215e2243735c2e2465fcf8629c29af5ba22d4d33"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:nasa:core_flight_system:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"7.0.0"}]}},{"type":"GIT","repo":"https://github.com/nasa/cfs","events":[{"introduced":"54923de58353747c3f0bb737bc402ecea2ed8ed4"},{"last_affected":"54923de58353747c3f0bb737bc402ecea2ed8ed4"}],"database_specific":{"cpe":"cpe:2.3:a:nasa:core_flight_system:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"7.0"},{"last_affected":"7.0"},{"introduced":"0"},{"last_affected":"7.0.0"}],"source":["AFFECTED_FIELD","CPE_RANGE"]}}],"versions":["7.0","v7.0.0","equuleus-rc1","draco-rc5","draco-rc4","draco-rc3","draco-rc2","draco-rc1","v7.0.0-rc3","v7.0.0-rc4","v7.0.0-rc2","v7.0.0-rc1","v6.8.0-rc1+dev393","v6.8.0-rc1","6.7.3-bv","6.7.0-bv","v6.6.0a","v6.5.0a","v7.0.0-multitarget-demo"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-5476.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}