CVE-2026-86136 — Fireware OS Missing Authorization in wgagent Management API Allows Denial of Service - Variant A

CVE-2026-86136

Fireware OS Missing Authorization in wgagent Management API Allows Denial of Service - Variant A PUBLISHED

Description (CNA)

A missing authorization vulnerability in the wgagent management daemon's session initialization function allows an authenticated, low-privileged user (including a read-only or guest administrator account) to crash the wgagent process and read arbitrary files accessible to the daemon by submitting a specially crafted management API request.

Affected (CNA)

Vendor / product	Versions
WatchGuard / Fireware OS	affected 2026.0 before 2026.3.2; affected 2025.0 before 2026.2.3; affected 12.0 before 12.12.3
WatchGuard / Fireware OS	affected 12.0 before 12.5.21

CWE

CWE-22, CWE-476, CWE-862

References

https://psirt.watchguard.com/CVE-2026-86136

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.