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Description

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.This issue affects Fireware OS: 11.8 through 11.12.4+541730, 12.0 through 12.11.8, and 2025.1 through 2026.1.2.

PUBLISHED Reserved 2026-03-17 | Published 2026-03-30 | Updated 2026-03-30 | Assigner WatchGuard




HIGH: 7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-352 Cross-Site Request Forgery (CSRF)

Product status

Default status
unaffected

11.8 (semver)
affected

12.0 (semver)
affected

12.5 (semver)
affected

2025.1 (semver)
affected

Credits

Simone Paganessi (https://www.linkedin.com/in/simonepaganessi) finder

References

www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00006 vendor-advisory

cve.org (CVE-2026-4315)

nvd.nist.gov (CVE-2026-4315)

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