1. Home
  2. CVE Database
  3. CVE-2026-3342
HIGH · 7.2

CVE-2026-3342

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. ...

Vulnerability Description

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 11.12.4_Update1, 12.0 up to and including 12.11.7 and 2025.1 up to and including 2026.1.1.

CVSS Score

7.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
WatchguardFireware>= 12.5, < 12.5.17
WatchguardFirebox T15-
WatchguardFirebox T35-
WatchguardFirebox M295-
WatchguardFirebox M395-
WatchguardFirebox M495-
WatchguardFirebox M595-
WatchguardFirebox M695-
WatchguardFirebox T115-W-
WatchguardFirebox T125-
WatchguardFirebox T125-W-
WatchguardFirebox T145-
WatchguardFirebox T145-W-
WatchguardFirebox T185-
WatchguardFirebox M270-
WatchguardFirebox M290-
WatchguardFirebox M370-
WatchguardFirebox M390-
WatchguardFirebox M440-
WatchguardFirebox M4600-

Related Weaknesses (CWE)

CWE-787

References

FAQ

What is CVE-2026-3342?

CVE-2026-3342 is a vulnerability with a CVSS score of 7.2 (HIGH). 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. ...

How severe is CVE-2026-3342?

CVE-2026-3342 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-3342?

Check the references section above for vendor advisories and patch information. Affected products include: Watchguard Fireware, Watchguard Firebox T15, Watchguard Firebox T35, Watchguard Firebox M295, Watchguard Firebox M395.