{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-53843", "assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8", "state": "PUBLISHED", "assignerShortName": "fortinet", "dateReserved": "2025-07-10T08:53:33.014Z", "datePublished": "2025-11-18T17:01:28.239Z", "dateUpdated": "2025-11-18T17:01:28.239Z"}, "containers": {"cna": {"affected": [{"vendor": "Fortinet", "product": "FortiOS", "cpes": ["cpe:2.3:o:fortinet:fortios:7.6.3:*:*:*:*:*:*:*", "cpe:2.3:o:fortinet:fortios:7.6.2:*:*:*:*:*:*:*", "cpe:2.3:o:fortinet:fortios:7.6.1:*:*:*:*:*:*:*", "cpe:2.3:o:fortinet:fortios:7.6.0:*:*:*:*:*:*:*", "cpe:2.3:o:fortinet:fortios:7.4.8:*:*:*:*:*:*:*", "cpe:2.3:o:fortinet:fortios:7.4.7:*:*:*:*:*:*:*", "cpe:2.3:o:fortinet:fortios:7.4.6:*:*:*:*:*:*:*", "cpe:2.3:o:fortinet:fortios:7.4.5:*:*:*:*:*:*:*", "cpe:2.3:o:fortinet:fortios:7.4.4:*:*:*:*:*:*:*", "cpe:2.3:o:fortinet:fortios:7.4.3:*:*:*:*:*:*:*", "cpe:2.3:o:fortinet:fortios:7.4.2:*:*:*:*:*:*:*", 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{"versionType": "semver", "version": "7.0.0", "lessThanOrEqual": "7.0.18", "status": "affected"}, {"versionType": "semver", "version": "6.4.0", "lessThanOrEqual": "6.4.16", "status": "affected"}]}], "descriptions": [{"lang": "en", "value": "A stack-based buffer overflow in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions allows attacker to execute unauthorized code or commands via specially crafted packets"}], "providerMetadata": {"orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8", "shortName": "fortinet", "dateUpdated": "2025-11-18T17:01:28.239Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-121", "description": "Execute unauthorized code or commands", "type": "CWE"}]}], "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:C"}}], "solutions": [{"lang": "en", "value": "Upgrade to upcoming FortiOS version 8.0.0 or above\nUpgrade to FortiOS version 7.6.4 or above\nUpgrade to FortiOS version 7.4.9 or above\nFortinet remediated this issue in FortiEdgeCloud version 25.3 and hence customers do not need to perform any action.\nFortinet remediated this issue in FortiSASE version 25.3.c (not released) and hence customers do not need to perform any action.\nUpgrade to FortiSwitchManager version 7.2.7 or above\nUpgrade to FortiSwitchManager version 7.0.6 or above"}], "references": [{"name": "https://fortiguard.fortinet.com/psirt/FG-IR-25-358", "url": "https://fortiguard.fortinet.com/psirt/FG-IR-25-358"}]}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "A stack-based buffer overflow in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions allows attacker to execute unauthorized code or commands via specially crafted packets"}], "id": "CVE-2025-53843", "lastModified": "2025-11-18T17:16:03.033", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 5.9, "source": "psirt@fortinet.com", "type": "Secondary"}]}, "published": "2025-11-18T17:16:03.033", "references": [{"source": "psirt@fortinet.com", "url": "https://fortiguard.fortinet.com/psirt/FG-IR-25-358"}], "sourceIdentifier": "psirt@fortinet.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-121"}], "source": "psirt@fortinet.com", "type": "Primary"}]}

{}

{}