CVE-2026-4315

published 2026-03-30

CVE-2026-4315: 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)…

Priority P4 27 medium 6.5 CVSS 3.1

AV N AC L PR N UI R S U C N I N A H

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.

Affected

11 ranges

Vendor	Product	Version range	Fixed in
watchguard	fireware	—	—
watchguard	fireware	—	—
watchguard	fireware	>= 11.8 < 11.12.4	11.12.4
watchguard	fireware	>= 12.0 < 12.12	12.12
watchguard	fireware	>= 12.5 < 12.5.18	12.5.18
watchguard	fireware	>= 2025.1 < 2026.2	2026.2
watchguard	fireware_os	11.8 – 11.12.4+541730	—
watchguard	fireware_os	>= 12.0 < 12.12	12.12
watchguard	fireware_os	>= 12.0 < 12.11.9	12.11.9
watchguard	fireware_os	>= 12.0 < 12.5.18	12.5.18
watchguard	fireware_os	>= 2025.1 < 2026.2	2026.2

CVSS provenance

nvd v3.1 6.5 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

nvd v4.0 7.1 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/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

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CWE-352