An authenticated administrator can trigger a denial-of-service condition in the Fireware Management Web UI by sending malformed or crafted data to the put_data endpoint, which performs unsafe deserialization of the attacker-supplied input.
Advisories

No advisories yet.

Fixes

Solution

Fireware OS 2026.2.1, Fireware OS 12.12.1, Fireware OS 12.5.19


Workaround

No workaround given by the vendor.

History

Mon, 10 Aug 2026 17:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:12.0
cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:12.5
cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:2025.1
cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*
References

Tue, 07 Jul 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 02 Jul 2026 23:30:00 +0000

Type Values Removed Values Added
Description An authenticated administrator can trigger a denial-of-service condition in the Fireware Management Web UI by sending malformed or crafted data to the put_data endpoint, which performs unsafe deserialization of the attacker-supplied input.
Title WatchGuard Firebox Management Web UI Denial of Service via Unsafe Deserialization
First Time appeared Watchguard
Watchguard fireware Os
Weaknesses CWE-502
CPEs cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:12.0
cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:12.5
cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:2025.1
Vendors & Products Watchguard
Watchguard fireware Os
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: WatchGuard

Published:

Updated: 2026-08-10T17:08:31.138Z

Reserved: 2026-06-25T19:43:53.207Z

Link: CVE-2026-13371

cve-icon Vulnrichment

Updated: 2026-07-06T18:05:00.842Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-07-03T00:16:51.013

Modified: 2026-08-10T17:17:29.433

Link: CVE-2026-13371

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-01T21:15:04Z

Weaknesses