CVE-2026-13050

HIGH

WatchGuard Firebox networkd Out of Bounds Write Vulnerability

Title source: cna

Description

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 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.2.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00029

Scores

CVSS v4 8.6

EPSS 0.0053

EPSS Percentile 42.0%

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-787

Status published

Products (4)

WatchGuard/Fireware OS 11.8 - 11.12.4+541730

WatchGuard/Fireware OS 12.0 - 12.12

WatchGuard/Fireware OS 12.5 - 12.5.18

WatchGuard/Fireware OS 2025.1 - 2026.2

Published Jul 03, 2026

Tracked Since Jul 03, 2026