CVE-2025-11838 (GCVE-0-2025-11838)

Vulnerability from cvelistv5 – Published: 2025-12-04 21:48 – Updated: 2026-08-10 15:40
VLAI
Title
WatchGuard Firebox iked Memory Corruption Vulnerability
Summary
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.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-05 15:44 UTC
CWE
Assigner
WatchGuard CNA under the mitre root
CNA scorecard A 91/100 over 93 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
WatchGuard Fireware OS Affected: 2025.1 , ≤ 2025.1.3 (custom)
Affected: 12.6.1 , ≤ 12.11.5 (custom)
    cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*
    cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2025-12-04 21:48
Show details on NVD website

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                  "version": "12.6.1",
                  "versionType": "custom"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*",
                      "versionEndIncluding": "2025.1.3",
                      "versionStartIncluding": "2025.1",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*",
                      "versionEndIncluding": "12.11.5",
                      "versionStartIncluding": "12.6.1",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ],
              "operator": "OR"
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "McCaulay Hudson (@_McCaulay) of watchTowr"
            }
          ],
          "datePublic": "2025-12-04T21:48:10.961Z",
          "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."
            }
          ],
          "exploits": [
            {
              "lang": "en",
              "value": "WatchGuard is not aware of any exploitation of this vulnerability in the wild."
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "baseScore": 8.7,
                "baseSeverity": "HIGH",
                "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",
                "version": "4.0"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-763",
                  "description": "CWE-763",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-10T15:40:56.274Z",
            "orgId": "5d1c2695-1a31-4499-88ae-e847036fd7e3",
            "shortName": "WatchGuard"
          },
          "references": [
            {
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://psirt.watchguard.com/CVE-2025-11838"
            },
            {
              "url": "https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00018"
            }
          ],
          "solutions": [
            {
              "lang": "en",
              "value": "Fireware OS 2025.1.3, Fireware OS 12.11.5"
            }
          ],
          "title": "WatchGuard Firebox iked Memory Corruption Vulnerability"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "5d1c2695-1a31-4499-88ae-e847036fd7e3",
        "assignerShortName": "WatchGuard",
        "cveId": "CVE-2025-11838",
        "datePublished": "2025-12-04T21:48:10.961Z",
        "dateReserved": "2025-10-16T06:58:57.085Z",
        "dateUpdated": "2026-08-10T15:40:56.274Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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