CVE-2026-13722

High

Open

TLP:CLEAR

WatchGuard Firebox Firmware Image Validation Bypass in WatchGuard Fireware OS

NVD CVE.org

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Description

WatchGuard Fireware OS contains a firmware validation bypass when processing a backup image via the backup/restore feature. An authenticated administrator can exploit this vulnerability to install a tampered firmware image.

Details

CVSS Score: 8.6
EPSS Score ⓘ: 0.23%

14th percentile
CVSS Vector: 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
Confidence: 90%
Published: Jul 2, 2026
Last Modified: Aug 10, 2026

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