{"id":"CVE-2026-70465","aliases":["EUVD-2026-57188","GHSA-95wv-6wmf-f8vm"],"status":"published","title":"A buffer copy without checking size of input ('classic buffer overflow') vulnerability in...","description":"A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.11 may allow an unauthenticated attacker in a position to alter or craft DNS responses to the targeted host to execute arbitrary code via malicious packets.","severity":{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00516,"percentile":0.44198,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2026-08-12T11:52:25Z","modified":"2026-10-24T15:10:00Z","products":[{"vendor":"fortinet","product":"forticlient"},{"vendor":"fortinet","product":"forticlientwindows"}],"references":[{"url":"https://fortiguard.fortinet.com/psirt/FG-IR-26-156","tags":["Vendor Advisory","Mitigation"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-70465"},{"url":"https://github.com/advisories/GHSA-95wv-6wmf-f8vm"}],"sources":{"cve":[{"id":"CVE-2026-70465","description":"A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.11 may allow an unauthenticated attacker in a position to alter or craft DNS responses to the targeted host to execute arbitrary code via malicious packets.","status":"published","published":"2026-08-12T11:52:25.666Z","modified":"2026-10-20T13:54:58.117Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T13:35:33.380441Z"}],"euvd":[{"id":"EUVD-2026-57188","description":"A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.11 may allow an unauthenticated attacker in a position to alter or craft DNS responses to the targeted host to execute arbitrary code via malicious packets.","status":"published","published":"2026-08-12T11:52:25Z","modified":"2026-10-20T13:54:58Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T16:59:44.419021Z"}],"ghsa":[{"id":"GHSA-95wv-6wmf-f8vm","title":"A buffer copy without checking size of input ('classic buffer overflow') vulnerability in...","description":"A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.11 may allow an unauthenticated attacker in a position to alter or craft DNS responses to the targeted host to execute arbitrary code via malicious packets.","status":"published","published":"2026-08-12T12:32:54Z","modified":"2026-08-12T12:33:05Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T15:10:22.198935Z"}],"nvd":[{"id":"CVE-2026-70465","description":"A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.11 may allow an unauthenticated attacker in a position to alter or craft DNS responses to the targeted host to execute arbitrary code via malicious packets.","status":"published","published":"2026-08-12T12:19:47.017Z","modified":"2026-10-24T15:10:00.19Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:12:36.880938Z"}]}}