CVE-2026-13050: WatchGuard Firebox networkd Out of Bounds Write Vulnerability

Published Jul 2, 2026
·
Updated

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS networkd 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 11.8 up to and including 11.12.4Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.2.

Affected Software

1 affected component
WatchGuard Fireware OS>=11.8<=11.12.4_Update1, >=12.0<=12.12, >=2025.1<=2026.2

Event History

Jul 2, 2026
CVE Published
via MITRE·11:08 PM
Data Sourced
via MITRE·11:08 PM
DescriptionWeakness
Jul 3, 2026
Data Sourced
via NVD·12:16 AM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2026-13050?

CVE-2026-13050 has a severity rating of high with a CVSS score of 8.6.

2

How do I fix CVE-2026-13050?

To mitigate CVE-2026-13050, update WatchGuard Fireware OS to version 11.12.4_Update2 or later.

3

Who is affected by CVE-2026-13050?

CVE-2026-13050 affects authenticated privileged users of WatchGuard Fireware OS versions 11.8 to 11.12.4_Update1 and 12.0 up to earlier versions.

4

What type of vulnerability is CVE-2026-13050?

CVE-2026-13050 is classified as an Out-of-bounds Write vulnerability.

5

What could an attacker achieve with CVE-2026-13050?

An attacker exploiting CVE-2026-13050 could execute arbitrary code on the affected WatchGuard Fireware OS device.

Contact

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