{"id":"CVE-2025-11838","aliases":["EUVD-2025-201298","GHSA-j82h-27vv-ghvv"],"status":"published","title":"WatchGuard Firebox iked Memory Corruption Vulnerability","description":"A memory corruption vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker to trigger a Denial of Service (DoS) condition in the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00518,"percentile":0.44529,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-763"],"published":"2025-12-04T21:48:10Z","modified":"2026-09-25T23:10:00Z","products":[{"vendor":"watchguard","product":"fireware"},{"vendor":"watchguard","product":"fireware os"}],"references":[{"url":"https://psirt.watchguard.com/CVE-2025-11838","tags":["vendor-advisory"]},{"url":"https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00018","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-11838"},{"url":"https://github.com/advisories/GHSA-j82h-27vv-ghvv"}],"sources":{"cve":[{"id":"CVE-2025-11838","title":"WatchGuard Firebox iked Memory Corruption Vulnerability","description":"A memory corruption vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker to trigger a Denial of Service (DoS) condition in the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer.","status":"published","published":"2025-12-04T21:48:10.961Z","modified":"2026-08-10T15:40:56.274Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-763"],"updated_at":"2026-11-02T14:32:50.520421Z"}],"euvd":[{"id":"EUVD-2025-201298","description":"A memory corruption vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker to trigger a Denial of Service (DoS) condition in the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer.","status":"published","published":"2025-12-04T21:48:10Z","modified":"2026-08-10T15:40:56Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T18:02:01.941928Z"}],"ghsa":[{"id":"GHSA-j82h-27vv-ghvv","title":"A memory corruption vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker...","description":"A memory corruption vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker to trigger a Denial of Service (DoS) condition in the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer.\n\nThis vulnerability affects Fireware OS 12.0 up to and including 12.11.4 and 2025.1 up to and including 2025.1.2.","status":"published","published":"2025-12-05T00:31:04Z","modified":"2026-08-10T18:32:00Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-763"],"updated_at":"2026-11-02T15:10:15.270288Z"}],"nvd":[{"id":"CVE-2025-11838","description":"A memory corruption vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker to trigger a Denial of Service (DoS) condition in the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer.","status":"published","published":"2025-12-04T22:15:46.61Z","modified":"2026-09-25T23:10:00.463Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-763"],"updated_at":"2026-11-02T14:11:47.746175Z"}]}}