{"id":"CVE-2025-25253","title":"An Improper Validation of Certificate with Host Mismatch vulnerability [CWE-297] in FortiProxy version 7.6.1 and below, version 7.4.8 and below, 7.2 all versions, 7.0 all versions and FortiOS version 7.6.2 and below, version 7.4.8 and be…","summary":"An Improper Validation of Certificate with Host Mismatch vulnerability [CWE-297] in FortiProxy version 7.6.1 and below, version 7.4.8 and below, 7.2 all versions, 7.0 all versions and FortiOS version 7.6.2 and below, version 7.4.8 and be…","severity":"medium","cvss":6.8,"cvssVector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","cvssSource":"cna","cwe":["CWE-297"],"vendor":"Fortinet","product":"FortiProxy","affected":["FortiProxy >= 7.6.0 <= 7.6.1","FortiProxy >= 7.4.0 <= 7.4.8","FortiProxy >= 7.2.0 <= 7.2.15","FortiProxy >= 7.0.0 <= 7.0.22","FortiOS >= 7.6.0 <= 7.6.2","FortiOS >= 7.4.0 <= 7.4.8","FortiOS >= 7.2.0 <= 7.2.12","FortiOS >= 7.0.0 <= 7.0.18","FortiPAM 1.4.1"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2025-10-16T03:57:12.627770Z"},"published":"2025-10-14","updated":"2026-10-15","sourceUpdated":"2026-10-15T01:05:51.364Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-25253","references":[{"url":"https://fortiguard.fortinet.com/psirt/FG-IR-24-457","label":"https://fortiguard.fortinet.com/psirt/FG-IR-24-457"}],"tags":["cve.org"],"epss":0.00114,"epssPercentile":0.01355,"ingestedAt":"2026-10-15T05:52:46.101Z","slug":"CVE-2025-25253","body":"## Overview\n\nAn Improper Validation of Certificate with Host Mismatch vulnerability [CWE-297] in FortiProxy version 7.6.1 and below, version 7.4.8 and below, 7.2 all versions, 7.0 all versions and FortiOS version 7.6.2 and below, version 7.4.8 and below, 7.2 all versions, 7.0 all versions ZTNA proxy may allow an unauthenticated attacker in a man-in-the middle position to intercept and tamper with connections to the ZTNA proxy\n\n## Affected\n\n- `FortiProxy >= 7.6.0 <= 7.6.1`\n- `FortiProxy >= 7.4.0 <= 7.4.8`\n- `FortiProxy >= 7.2.0 <= 7.2.15`\n- `FortiProxy >= 7.0.0 <= 7.0.22`\n- `FortiOS >= 7.6.0 <= 7.6.2`\n- `FortiOS >= 7.4.0 <= 7.4.8`\n- `FortiOS >= 7.2.0 <= 7.2.12`\n- `FortiOS >= 7.0.0 <= 7.0.18`\n- `FortiPAM 1.4.1`\n\n## Remediation\n\nUpgrade to FortiProxy version 7.6.2 or above\nUpgrade to FortiProxy version 7.4.9 or above\nUpgrade to FortiOS version 7.6.3 or above\nUpgrade to FortiOS version 7.4.9 or above","depth":"sunlit","depthScore":37,"depthScoreParts":{"impact":37.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}