CVE-2026-126163

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-126163", "assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8", "state": "PUBLISHED", "assignerShortName": "fortinet", "dateReserved": "2026-11-10T20:03:52.577Z", "datePublished": "2026-11-11T21:29:25.391Z", "dateUpdated": "2026-11-11T21:29:25.391Z"}, "containers": {"cna": {"affected": [{"vendor": "Fortinet", "product": "FortiMail", "cpes": ["cpe:2.3:a:fortinet:fortimail:8.0.1:*:*:*:*:*:*:*", "cpe:2.3:a:fortinet:fortimail:8.0.0:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "versions": [{"versionType": "semver", "version": "8.0.0", "lessThanOrEqual": "8.0.1", "status": "affected"}]}], "descriptions": [{"lang": "en", "value": "A use of externally-controlled format string vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1 may allow a remote unauthenticated attacker to execute unauthorized code or commands via a specially crafted SMTP command."}], "providerMetadata": {"orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8", "shortName": "fortinet", "dateUpdated": "2026-11-11T21:29:25.391Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-134", "description": "Execute unauthorized code or commands", "type": "CWE"}]}], "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C"}}], "solutions": [{"lang": "en", "value": "Upgrade to FortiMail version 8.0.2 or above"}], "references": [{"name": "https://fortiguard.fortinet.com/psirt/FG-IR-26-215", "url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-215"}]}}}

{}

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:fortinet:fortimail:8.0.1:*:*:*:*:*:*:*", "cpe:2.3:a:fortinet:fortimail:8.0.0:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "product": "FortiMail", "vendor": "Fortinet", "versions": [{"lessThanOrEqual": "8.0.1", "status": "affected", "version": "8.0.0", "versionType": "semver"}]}], "source": "psirt@fortinet.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A use of externally-controlled format string vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1 may allow a remote unauthenticated attacker to execute unauthorized code or commands via a specially crafted SMTP command."}], "id": "CVE-2026-126163", "lastModified": "2026-11-12T19:14:29.340", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "psirt@fortinet.com", "type": "Secondary"}]}, "published": "2026-11-11T22:17:14.403", "references": [{"source": "psirt@fortinet.com", "url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-215"}], "sourceIdentifier": "psirt@fortinet.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-134"}], "source": "psirt@fortinet.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.0.0,8.0.1]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "FortiMail", "source": "cna", "vendor": "Fortinet"}, "product": "fortimail", "vendor": "fortinet"}], "created": "2026-11-12T16:45:05.969106+00:00", "title": "Externally\u2011Controlled Format String Exploit in FortiMail Permitting Remote Code Execution via SMTP", "updated": "2026-11-13T02:30:04.273982+00:00", "vendors": ["fortinet", "fortinet$PRODUCT$fortimail"]}