{"id":"CVE-2025-11838","state":"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.","publishedAt":"2025-12-04T21:48:10.961Z","updatedAt":"2026-08-10T15:40:56.274Z","severity":{"score":8.7,"label":"High","version":"4.0","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","source":"WatchGuard"},"assigner":"WatchGuard","products":["WatchGuard Fireware OS"],"affected":[{"vendor":"WatchGuard","product":"Fireware OS","defaultStatus":"unaffected","versions":[{"version":"2025.1","status":"affected","lessThanOrEqual":"2025.1.3","versionType":"custom"},{"version":"12.6.1","status":"affected","lessThanOrEqual":"12.11.5","versionType":"custom"}],"platforms":["Default"]}],"references":["https://psirt.watchguard.com/CVE-2025-11838","https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00018"],"weaknesses":["CWE-763"],"ingestedAt":"2026-10-29T20:08:31.050Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/11xxx/CVE-2025-11838.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-11838","state":"PUBLISHED","datePublished":"2025-12-04T21:48:10.961Z","dateUpdated":"2026-08-10T15:40:56.274Z","assignerShortName":"WatchGuard","assignerOrgId":"5d1c2695-1a31-4499-88ae-e847036fd7e3","dateReserved":"2025-10-16T06:58:57.085Z"},"containers":{"cna":{"title":"WatchGuard Firebox iked Memory Corruption Vulnerability","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"WatchGuard","product":"Fireware OS","defaultStatus":"unaffected","versions":[{"version":"2025.1","status":"affected","lessThanOrEqual":"2025.1.3","versionType":"custom"},{"version":"12.6.1","status":"affected","lessThanOrEqual":"12.11.5","versionType":"custom"}],"platforms":["Default"]}],"references":[{"url":"https://psirt.watchguard.com/CVE-2025-11838","tags":["vendor-advisory"]},{"url":"https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00018"}],"metrics":[{"cvssV4_0":{"version":"4.0","vectorString":"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","baseScore":8.7,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-763","lang":"en","description":"CWE-763","type":"CWE"}]}],"providerMetadata":{"shortName":"WatchGuard","orgId":"5d1c2695-1a31-4499-88ae-e847036fd7e3","dateUpdated":"2026-08-10T15:40:56.274Z"},"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*","versionStartIncluding":"2025.1","versionEndIncluding":"2025.1.3"},{"vulnerable":true,"criteria":"cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*","versionStartIncluding":"12.6.1","versionEndIncluding":"12.11.5"}]}]}],"credits":[{"lang":"en","value":"McCaulay Hudson (@_McCaulay) of watchTowr","type":"finder"}],"solutions":[{"lang":"en","value":"Fireware OS 2025.1.3, Fireware OS 12.11.5"}],"exploits":[{"lang":"en","value":"WatchGuard is not aware of any exploitation of this vulnerability in the wild."}],"datePublic":"2025-12-04T21:48:10.961Z"},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-12-05T15:44:19.445395Z","id":"CVE-2025-11838","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-12-05T15:44:31.064Z"}}]}}}