#VU123429 Out-of-bounds write in Fireware OS - CVE-2026-3342

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Main Vulnerability Database Vulnerabilities #VU123429

#VU123429 Out-of-bounds write in Fireware OS - CVE-2026-3342

Published: March 3, 2026


Vulnerability identifier: #VU123429
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-3342
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Fireware OS
Software vendor:
WatchGuard

Description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to a boundary error when processing untrusted input. A remote authenticated administrator can send specially crafted requests via management interface to trigger an out-of-bounds write and execute arbitrary code with root privileges. 


Remediation

Install updates from vendor's website.

External links