{"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": "2026-08-30T05:30:09.275Z"}, "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"]}}}

{}

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:nasa:cfs:*:*:*:*:*:*:*:*"], "modules": ["cFE Software Bus"], "product": "cFS", "vendor": "NASA", "versions": [{"status": "affected", "version": "7.0.0"}, {"status": "affected", "version": "7.0.1"}]}], "source": "cna@vuldb.com"}], "cveTags": [], "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."}], "id": "CVE-2026-82480", "lastModified": "2026-08-30T06:16:56.730", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 6.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 3.7, "source": "cna@vuldb.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "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/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", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}]}, "published": "2026-08-30T06:16:56.730", "references": [{"source": "cna@vuldb.com", "url": "https://vuldb.com/cve/CVE-2026-82480"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/submit/888018"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/397030"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/397030/cti"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-189"}, {"lang": "en", "value": "CWE-191"}], "source": "cna@vuldb.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "7.0.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "7.0.1"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "cFS", "source": "cna", "vendor": "NASA"}, "product": "cfs", "vendor": "nasa"}], "created": "2026-08-30T06:30:07.886417+00:00", "updated": "2026-08-30T07:00:05.780609+00:00", "vendors": ["nasa", "nasa$PRODUCT$cfs"]}