{"id":"CVE-2025-25255","aliases":["EUVD-2025-34236","GHSA-mgv9-8jj6-qq93"],"status":"published","title":"An Improperly Implemented Security Check for Standard vulnerability [CWE-358] in FortiProxy 7.6.0...","description":"An Improperly Implemented Security Check for Standard vulnerability [CWE-358] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.11, FortiProxy 7.2 all versions, FortiProxy 7.0.1 through 7.0.22 may allow an unauthenticated proxy user to bypass the domain fronting protection feature via crafted HTTP requests.","severity":{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00437,"percentile":0.3829,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-358"],"published":"2025-10-14T15:23:09Z","modified":"2026-10-18T21:10:00Z","products":[{"vendor":"fortinet","product":"fortios"},{"vendor":"fortinet","product":"fortiproxy"}],"references":[{"url":"https://fortiguard.fortinet.com/psirt/FG-IR-24-372","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-25255"},{"url":"https://github.com/advisories/GHSA-mgv9-8jj6-qq93"}],"sources":{"cve":[{"id":"CVE-2025-25255","description":"An Improperly Implemented Security Check for Standard vulnerability [CWE-358] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.11, FortiProxy 7.2 all versions, FortiProxy 7.0.1 through 7.0.22 may allow an unauthenticated proxy user to bypass the domain fronting protection feature via crafted HTTP requests.","status":"published","published":"2025-10-14T15:23:09.821Z","modified":"2026-01-14T09:18:28.36Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C","level":"medium","assessor":"cna"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-358"],"updated_at":"2026-11-02T14:32:31.971896Z"}],"euvd":[{"id":"EUVD-2025-34236","description":"An Improperly Implemented Security Check for Standard vulnerability [CWE-358] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.11, FortiProxy 7.2 all versions, FortiProxy 7.0.1 through 7.0.22 may allow an unauthenticated proxy user to bypass the domain fronting protection feature via crafted HTTP requests.","status":"published","published":"2025-10-14T15:23:09Z","modified":"2026-01-14T09:18:28Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T19:48:52.227329Z"}],"ghsa":[{"id":"GHSA-mgv9-8jj6-qq93","title":"An Improperly Implemented Security Check for Standard vulnerability [CWE-358] in FortiProxy 7.6.0...","description":"An Improperly Implemented Security Check for Standard vulnerability [CWE-358] in FortiProxy 7.6.0 through 7.6.3, 7.4 all versions, 7.2 all versions, 7.0.1 through 7.0.21, and FortiOS 7.6.0 through 7.6.3 explicit web proxy may allow an authenticated proxy user to bypass the domain fronting protection feature via crafted HTTP requests.","status":"published","published":"2025-10-14T18:30:27Z","modified":"2025-10-15T15:31:32Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-358"],"updated_at":"2026-11-02T15:04:00.063131Z"}],"nvd":[{"id":"CVE-2025-25255","description":"An Improperly Implemented Security Check for Standard vulnerability [CWE-358] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.11, FortiProxy 7.2 all versions, FortiProxy 7.0.1 through 7.0.22 may allow an unauthenticated proxy user to bypass the domain fronting protection feature via crafted HTTP requests.","status":"published","published":"2025-10-14T16:15:37.02Z","modified":"2026-10-18T21:10:00.12Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-358"],"updated_at":"2026-11-02T14:11:36.851295Z"}]}}