CVE-2026-3342: WatchGuard Firebox Out of Bounds Write Vulnerability
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an authenticated privileged administrator to execute arbitrary code with root permissions via an exposed management interface.
This vulnerability affects Fireware OS 11.9 up to and including 11.12.4Update1, 12.0 up to and including 12.11.7 and 2025.1 up to and including 2026.1.1.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-3342?
CVE-2026-3342 has a critical severity rating due to potential arbitrary code execution with root permissions.
How do I fix CVE-2026-3342?
To mitigate CVE-2026-3342, upgrade your WatchGuard Fireware OS to a non-vulnerable version as specified in the advisory.
What versions of WatchGuard Fireware OS are affected by CVE-2026-3342?
CVE-2026-3342 affects WatchGuard Fireware OS versions from 11.9 to 12.11.7 and several versions up to 2026.1.1.
Who is affected by CVE-2026-3342?
CVE-2026-3342 primarily impacts authenticated privileged administrators using vulnerable versions of WatchGuard Fireware OS.
Can CVE-2026-3342 be exploited remotely?
Yes, CVE-2026-3342 can potentially be exploited through an exposed management interface, allowing remote attack vectors.