CVE-2026-86104 — Fireware OS Resource Exhaustion in Login Process Allows Denial of Service

CVE-2026-86104

Fireware OS Resource Exhaustion in Login Process Allows Denial of Service PUBLISHED

Description (CNA)

An uncontrolled resource consumption vulnerability in the Fireware OS login process (wgagent) allows a remote, unauthenticated attacker to cause a denial of service by sending a specially crafted request.

Affected (CNA)

Vendor / product	Versions
WatchGuard / Fireware OS	affected 2026.3 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-400, CWE-409, CWE-770

References

https://psirt.watchguard.com/CVE-2026-86104

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.