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CVE-2026-86104

CVE-2026-86104

8.7

High

Published:30 Sep 2026

Last updated:6 Oct 2026

Source:5d1c2695-1a31-4499-88ae-e847036fd7e3

Analyzed

Weakness (CWE)

CWE-400Uncontrolled Resource Consumption
CWE-409CWE-409
CWE-770Allocation of Resources Without Limits

CVSS Vector

v4.0

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: None
User Interaction: None
Confidentiality (Vulnerable): None
Integrity (Vulnerable): None
Availability (Vulnerable): High
Confidentiality (Subsequent): None
Integrity (Subsequent): None
Availability (Subsequent): None

View on MITRE Find PoC on GitHub

Description

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.

References

5d1c2695-1a31-4499-88ae-e847036fd7e3

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