{"id":"CVE-2025-25249","title":"A heap-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiOS 6.4 all versions, FortiSwitchManager 7.2.0 through 7.2.6…","summary":"A heap-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiOS 6.4 all versions, FortiSwitchManager 7.2.0 through 7.2.6…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-122","CWE-787"],"vendor":"fortinet","product":"fortiswitchmanager","affected":["fortios >= 6.4.0, < 7.0.18","fortios >= 7.2.0, < 7.2.12","fortios >= 7.4.0, < 7.4.9","fortios >= 7.6.0, < 7.6.4","fortiswitchmanager >= 7.0.0, < 7.0.6","fortiswitchmanager >= 7.2.0, < 7.2.7","fortisase = 25.1.39","fortisase = 25.1.51","ruggedcom_ape1808_firmware"],"patched":["fortios 7.6.4","fortiswitchmanager 7.2.7"],"published":"2026-01-13","updated":"2026-09-10","sourceUpdated":"2026-09-10T12:47:59.933","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-25249","references":[{"url":"https://fortiguard.fortinet.com/psirt/FG-IR-25-084","label":"psirt@fortinet.com"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-864900.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://socradar.io/blog/cve-2025-25249-pivotc2-fortigate-rat/","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-25249","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","in-the-wild","exploit-available","kev"],"exploited":true,"exploitAvailable":true,"ssvc":{"exploitation":"active","automatable":"no","technicalImpact":"total","timestamp":"2026-09-09T19:50:11.566505Z"},"scores":{"nvd":8.1,"cna":7.4},"epss":0.02403,"epssPercentile":0.83173,"kev":true,"kevDateAdded":"2026-09-09","kevDueDate":"2026-09-12","kevRansomware":false,"ingestedAt":"2026-09-09T20:21:14.797Z","slug":"CVE-2025-25249","body":"## Overview\n\nA heap-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiOS 6.4 all versions, FortiSwitchManager 7.2.0 through 7.2.6, FortiSwitchManager 7.0.0 through 7.0.5 allows attacker to execute unauthorized code or commands via specially crafted packets\n\n## Affected\n\n- `fortios >= 6.4.0, < 7.0.18`\n- `fortios >= 7.2.0, < 7.2.12`\n- `fortios >= 7.4.0, < 7.4.9`\n- `fortios >= 7.6.0, < 7.6.4`\n- `fortiswitchmanager >= 7.0.0, < 7.0.6`\n- `fortiswitchmanager >= 7.2.0, < 7.2.7`\n- `fortisase = 25.1.39`\n- `fortisase = 25.1.51`\n- `ruggedcom_ape1808_firmware`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `fortios 7.6.4`\n- `fortiswitchmanager 7.2.7`","depth":"abyssal","depthScore":70,"depthScoreParts":{"impact":44.6,"likelihood":0.5,"exploitation":25,"ransomware":0},"changes":[]}