CVE-2026-13383

HIGH

WatchGuard Firebox ikestubd Out of Bounds Write Vulnerability

Title source: cna

Description

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS ikestubd 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.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00020

Scores

CVSS v3 7.2

EPSS 0.0056

EPSS Percentile 43.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-787

Status published

Products (4)

watchguard/fireware 12.1 - 12.12.1

WatchGuard/Fireware OS 12.1 - 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