CVE-2026-3344

MEDIUM
2026-03-03 5d1c2695-1a31-4499-88ae-e847036fd7e3
4.9
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:05 vuln.today
CVE Published
Mar 03, 2026 - 14:15 nvd
MEDIUM 4.9

Tags

Authentication Bypass Fireware

Description

A vulnerability in WatchGuard Fireware OS may allow an attacker to bypass the Fireware OS filesystem integrity check and maintain limited persistence via a maliciously-crafted firmware update package.This issue affects Fireware OS 12.0 up to and including 12.11.7, 12.5.9 up to and including 12.5.16, and 2025.1 up to and including 2026.1.1.

Analysis

WatchGuard Fireware OS contains a filesystem integrity bypass vulnerability in versions 12.0-12.11.7, 12.5.9-12.5.16, and 2025.1-2026.1.1 that allows authenticated attackers with high privileges to deploy malicious firmware updates and establish limited persistence on affected appliances. An attacker could circumvent security checks designed to validate firmware authenticity, though currently no patch is available.

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Remediation

Within 30 days: Identify affected systems running WatchGuard Fireware OS may allow an attacker to bypass the F and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

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Priority Score

25
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +24
POC: 0

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CVE-2026-3344 vulnerability details – vuln.today
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