CVE-2026-13384
Received Received - Intake

Out-of-bounds Write in WatchGuard Fireware OS wgagent

Publication date: 2026-07-03

Last updated on: 2026-07-03

Assigner: WatchGuard Technologies, Inc.

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.

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Meta Information

Published
2026-07-03
Last Modified
2026-07-03
Generated
2026-07-03
AI Q&A
2026-07-03
EPSS Evaluated
N/A
NVD
CVE-2026-13384
EUVD
EUVD-2026-41454

Affected Vendors & Products

Showing 5 associated CPEs
Vendor Product Version / Range
watchguard fireware_os to 12.12 (inc)
watchguard fireware_os to 12.5.18 (inc)
watchguard fireware_os to 2026.2 (inc)
watchguard fireware_os to 12.12.1 (inc)
watchguard fireware_os to 2026.2.1 (inc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.

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Executive Summary

This vulnerability is an Out-of-bounds Write issue in the WatchGuard Fireware OS wgagent process. It allows an authenticated privileged user to execute arbitrary code by sending specially crafted requests to the Management Web UI.

It affects Fireware OS versions 12.1 through 12.12, 12.5 through 12.5.18, and 2025.1 through 2026.2.

Impact Analysis

This vulnerability can have a high impact because it allows an authenticated privileged user to execute arbitrary code on the affected system. This could lead to unauthorized control over the device, potentially compromising the security and integrity of the network managed by the Fireware OS.

Mitigation Strategies

To mitigate this vulnerability, you should upgrade your WatchGuard Fireware OS to a fixed version. The issue has been resolved in Fireware OS versions 2026.2.1, 12.12.1, and 12.5.x for T15 and T35 models.

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