CVE-2026-3344

EUVD-2026-9290
A vulnerability in WatchGuard Fireware OS may allow an attacker to bypass the Fireware OS filesystem integrity check and maintain limited persistence via a maliciously-crafted firmware update package.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.9 MEDIUM
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 19.6%
Affected Products (NVD)
VendorProductVersion
watchguardfireware
12.0 ≤
𝑥
< 12.11.8
watchguardfireware
12.5.9 ≤
𝑥
< 12.5.17
watchguardfireware
2025.1 ≤
𝑥
< 2026.1.2
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://psirt.watchguard.com/CVE-2026-3344
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00005