CVE-2026-4315

EUVD-2026-17081
A Cross-Site Request Forgery (CSRF) vulnerability in the WatchGuard Fireware OS WebUI could allow a remote attacker to trigger a denial-of-service (DoS) condition in the Fireware Web UI by convincing an authenticated administrator into visiting a malicious web page.
CSRF
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 13.74%
Affected Products (NVD)
VendorProductVersion
watchguardfireware
2025.1 ≤
𝑥
< 2026.2
watchguardfireware
12.5 ≤
𝑥
< 12.5.18
watchguardfireware
11.8 ≤
𝑥
< 11.12.4
watchguardfireware
11.12.4
watchguardfireware
11.12.4:u1
watchguardfireware
12.0 ≤
𝑥
< 12.12
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://psirt.watchguard.com/CVE-2026-4315
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00006