{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-82480","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-08-29T14:40:28.151Z","datePublished":"2026-08-30T05:30:09.275Z","dateUpdated":"2026-08-31T17:06:07.604Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-08-30T05:30:09.275Z"},"title":"NASA cFS cFE Software Bus cfe_sb_util.c CFE_SB_GetUserDataLength integer underflow","problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-191","lang":"en","description":"Integer Underflow"}]},{"descriptions":[{"type":"CWE","cweId":"CWE-189","lang":"en","description":"Numeric Error"}]}],"affected":[{"vendor":"NASA","product":"cFS","versions":[{"version":"7.0.0","status":"affected"},{"version":"7.0.1","status":"affected"}],"cpes":["cpe:2.3:a:nasa:cfs:*:*:*:*:*:*:*:*"],"modules":["cFE Software Bus"]}],"descriptions":[{"lang":"en","value":"A security flaw has been discovered in NASA cFS up to 7.0.1. The affected element is the function CFE_SB_GetUserDataLength of the file src/cFS/cfe/modules/sb/fsw/src/cfe_sb_util.c of the component cFE Software Bus. Performing a manipulation of the argument TotalMsgSize/HdrSize results in integer underflow. It is possible to initiate the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way."}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":5.3,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":7.4,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:X/RL:X/RC:R","baseSeverity":"HIGH"}},{"cvssV3_0":{"version":"3.0","baseScore":7.4,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:X/RL:X/RC:R","baseSeverity":"HIGH"}},{"cvssV2_0":{"version":"2.0","baseScore":6.5,"vectorString":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:ND/RC:UR"}}],"timeline":[{"time":"2026-08-29T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-08-29T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-08-29T16:45:53.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"juntheworld (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB CNA Team","type":"coordinator"}],"references":[{"url":"https://vuldb.com/vuln/397030","name":"VDB-397030 | NASA cFS cFE Software Bus cfe_sb_util.c CFE_SB_GetUserDataLength integer underflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/397030/cti","name":"VDB-397030 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-82480","name":"CVE-2026-82480 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/888018","name":"Submit #888018 | NASA cFS 7.0.1 Integer Underflow","tags":["third-party-advisory"]}],"x_generator":["VulDB PVTS v202608"]},"adp":[{"references":[{"url":"https://vuldb.com/submit/888018","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-31T17:05:45.311597Z","id":"CVE-2026-82480","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-31T17:06:07.604Z"}}]}}