CVE-2026-104381 (GCVE-0-2026-104381)
Vulnerability from cvelistv5
Published
2026-10-27 15:52
Modified
2026-10-27 15:52
Summary
A missing authentication vulnerability in Fireware OS's FireCluster state synchronization feature allows an unauthenticated attacker positioned on the cluster synchronization network segment to force premature VPN tunnel termination by sending crafted cluster synchronization traffic.
References
Impacted products
Vendor Product Version
WatchGuard Fireware OS Version: 2025.1   < 2026.4
Version: 12.0   < 12.12.4
Create a notification for this product.
Show details on NVD website


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          "product": "Fireware OS",
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            }
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        },
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          "platforms": [
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          ],
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      "configurations": [
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          "supportingMedia": [
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              "value": "\u003cp\u003eThis vulnerability affects Firebox appliances deployed as a Firecluster and configured with at least one BOVPN tunnel.\u003c/p\u003e"
            }
          ],
          "value": "This vulnerability affects Firebox appliances deployed as a Firecluster and configured with at least one BOVPN tunnel."
        }
      ],
      "cpeApplicability": [
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          "nodes": [
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        }
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              "value": "WatchGuard is not aware of any exploitation of this vulnerability in the wild."
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          "value": "WatchGuard is not aware of any exploitation of this vulnerability in the wild."
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      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 6,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0"
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-294",
              "description": "CWE-294",
              "lang": "en",
              "type": "CWE"
            },
            {
              "cweId": "CWE-306",
              "description": "CWE-306",
              "lang": "en",
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            },
            {
              "cweId": "CWE-345",
              "description": "CWE-345",
              "lang": "en",
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-27T15:52:27.697Z",
        "orgId": "5d1c2695-1a31-4499-88ae-e847036fd7e3",
        "shortName": "WatchGuard"
      },
      "references": [
        {
          "tags": [
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          ],
          "url": "https://psirt.watchguard.com/CVE-2026-104381"
        }
      ],
      "solutions": [
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          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Fireware OS 2026.4, Fireware OS 12.12.4, Fireware OS 12.5.22"
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          ],
          "value": "Fireware OS 2026.4, Fireware OS 12.12.4, Fireware OS 12.5.22"
        }
      ],
      "title": "Fireware OS Missing Authentication in FireCluster State Sync Allows BOVPN Tunnel Denial of Service"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "5d1c2695-1a31-4499-88ae-e847036fd7e3",
    "assignerShortName": "WatchGuard",
    "cveId": "CVE-2026-104381",
    "datePublished": "2026-10-27T15:52:27.697Z",
    "dateReserved": "2026-10-01T22:29:33.721Z",
    "dateUpdated": "2026-10-27T15:52:27.697Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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