CVE-2026-93865

Fireware OS Missing Authentication in FireCluster Sync Daemon Allows Remote Root Action Injection

Published Oct 27, 2026 CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed
Description
A missing authentication vulnerability in the Fireware OS FireCluster synchronization daemon allows a remote, unauthenticated attacker to invoke privileged system-level administrative actions by sending a specially crafted request to the FireCluster management IP when the clustering feature is enabled.

Remediation

Vendor Solution

Fireware OS 2026.4, Fireware OS 12.12.4, Fireware OS 12.5.22

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A missing authentication vulnerability in the Fireware OS FireCluster synchronization daemon allows a remote, unauthenticated attacker to invoke privileged system-level administrative actions by sending a specially crafted request to the FireCluster management IP when the clustering feature is enabled.
Title Fireware OS Missing Authentication in FireCluster Sync Daemon Allows Remote Root Action Injection
First Time appeared Watchguard
Watchguard fireware Os
Weaknesses CWE-306
CWE-77
CWE-862
CPEs cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*
Vendors & Products Watchguard
Watchguard fireware Os
References
Metrics cvssV4_0

{'score': 9.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
WatchGuard
Published
Updated
Oct 29, 2026, 10:45 AM
Reserved
Sep 18, 2026, 7:23 PM
Status
Awaiting Analysis
Published
Oct 27, 2026, 4:17 PM
Modified
Oct 29, 2026, 11:17 AM