{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-84391", "assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8", "state": "PUBLISHED", "assignerShortName": "fortinet", "dateReserved": "2026-09-01T16:36:11.927Z", "datePublished": "2026-09-08T16:41:50.685Z", "dateUpdated": "2026-09-08T17:29:43.459Z"}, "containers": {"cna": {"affected": [{"vendor": "Fortinet", "product": "FortiAnalyzer", "cpes": ["cpe:2.3:o:fortinet:fortianalyzer:7.6.6:*:*:*:*:*:*:*", "cpe:2.3:o:fortinet:fortianalyzer:7.6.5:*:*:*:*:*:*:*", "cpe:2.3:o:fortinet:fortianalyzer:7.6.4:*:*:*:*:*:*:*", "cpe:2.3:o:fortinet:fortianalyzer:7.6.3:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "versions": [{"versionType": "semver", "version": "7.6.3", "lessThanOrEqual": "7.6.6", "status": "affected"}]}], "descriptions": [{"lang": "en", "value": "A use of uninitialized variable vulnerability in Fortinet FortiAnalyzer 7.6.3 through 7.6.6 may allow attacker to denial of service via <insert attack vector here>"}], "providerMetadata": {"orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8", "shortName": "fortinet", "dateUpdated": "2026-09-08T16:41:50.685Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-457", "description": "Denial of service", "type": "CWE"}]}], "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C"}}], "solutions": [{"lang": "en", "value": "Upgrade to FortiAnalyzer version 8.0.0 or above\nUpgrade to FortiAnalyzer version 7.6.7 or above"}], "references": [{"name": "https://fortiguard.fortinet.com/psirt/FG-IR-26-172", "url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-172"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-08T17:29:24.379449Z", "id": "CVE-2026-84391", "options": [{"Exploitation": "none"}, {"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": "2026-09-08T17:29:43.459Z"}}]}}

{}

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:o:fortinet:fortianalyzer:7.6.6:*:*:*:*:*:*:*", "cpe:2.3:o:fortinet:fortianalyzer:7.6.5:*:*:*:*:*:*:*", "cpe:2.3:o:fortinet:fortianalyzer:7.6.4:*:*:*:*:*:*:*", "cpe:2.3:o:fortinet:fortianalyzer:7.6.3:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "product": "FortiAnalyzer", "vendor": "Fortinet", "versions": [{"lessThanOrEqual": "7.6.6", "status": "affected", "version": "7.6.3", "versionType": "semver"}]}], "source": "psirt@fortinet.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A use of uninitialized variable vulnerability in Fortinet FortiAnalyzer 7.6.3 through 7.6.6 may allow attacker to denial of service via <insert attack vector here>"}], "id": "CVE-2026-84391", "lastModified": "2026-09-08T18:35:10.323", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "psirt@fortinet.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-84391", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-08T17:29:24.379449Z", "version": "2.0.3"}}]}, "published": "2026-09-08T17:18:37.520", "references": [{"source": "psirt@fortinet.com", "url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-172"}], "sourceIdentifier": "psirt@fortinet.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-457"}], "source": "psirt@fortinet.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[7.6.3,7.6.6]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "FortiAnalyzer", "source": "cna", "vendor": "Fortinet"}, "product": "fortianalyzer", "vendor": "fortinet"}], "created": "2026-09-08T17:45:17.298173+00:00", "title": "Uninitialized Variable Leading to Denial of Service in FortiAnalyzer 7.6.3-7.6.6", "updated": "2026-09-08T18:00:11.091991+00:00", "vendors": ["fortinet", "fortinet$PRODUCT$fortianalyzer"]}