8.6
HIGH CVSS 4.0
CVE-2026-13384
WatchGuard Firebox wgagent Out of Bounds Write Vulnerability
Description

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS wgagent process could allow an authenticated privileged user to execute arbitrary code via a specially crafted requests to the Management Web UI.This vulnerability affects Fireware OS 12.1 up to and including 12.12 and 2025.1 up to and including 2026.2.

INFO

Published Date :

July 2, 2026, 11:05 p.m.

Last Modified :

July 2, 2026, 11:05 p.m.

Remotely Exploit :

Yes !

Source :

WatchGuard
Affected Products

The following products are affected by CVE-2026-13384 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Watchguard fireware_os
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 4.0 HIGH 5d1c2695-1a31-4499-88ae-e847036fd7e3
Solution
Update WatchGuard Fireware OS to patch out-of-bounds write vulnerability.
  • Update WatchGuard Fireware OS to a fixed version.
  • Apply vendor patches for affected versions.
  • Restrict access to Management Web UI.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-13384 vulnerability anywhere in the article.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.