{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-94054", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "state": "PUBLISHED", "assignerShortName": "mitre", "dateReserved": "2026-09-19T22:46:24.165Z", "datePublished": "2026-09-19T22:46:24.545Z", "dateUpdated": "2026-09-19T22:46:24.545Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Exim", "vendor": "Exim", "versions": [{"lessThan": "4.100.1", "status": "affected", "version": "4.83", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, has an out-of-bounds write."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-09-19T22:46:24.545Z"}, "references": [{"url": "https://lists.exim.org/lurker/message/20260918.121220.0f87338e.en.html"}], "x_generator": {"engine": "CVE-Request-form 0.0.1"}, "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.83", "versionEndExcluding": "4.100.1"}]}]}]}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Exim", "vendor": "Exim", "versions": [{"lessThan": "4.100.1", "status": "affected", "version": "4.83", "versionType": "custom"}]}], "source": "cve@mitre.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, has an out-of-bounds write."}], "id": "CVE-2026-94054", "lastModified": "2026-09-19T23:17:10.827", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 4.7, "source": "cve@mitre.org", "type": "Secondary"}]}, "published": "2026-09-19T23:17:10.827", "references": [{"source": "cve@mitre.org", "url": "https://lists.exim.org/lurker/message/20260918.121220.0f87338e.en.html"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "cve@mitre.org", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[4.83,4.100.1)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Exim", "source": "cna", "vendor": "Exim"}, "product": "exim", "vendor": "exim"}], "created": "2026-09-20T00:30:16.206124+00:00", "title": "Out-of-Bounds Write via Proxy-Protocol in Exim", "updated": "2026-09-20T01:45:16.855110+00:00", "vendors": ["exim", "exim$PRODUCT$exim"]}