PT-2026-103017 · Watchguard · Fireware Os

CVE-2026-86134

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Published

2026-09-30

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Updated

2026-09-30

CVSS v4.0

8.7

High

VectorAV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions WatchGuard Fireware OS (affected versions not specified)
Description A NULL pointer dereference occurs during the authentication process, where a remote, unauthenticated attacker can crash the management daemon by sending a specially crafted request to the login interface. This leads to a denial of service. A NULL pointer dereference is a condition where a program attempts to read or write to a memory address that is NULL, typically causing the application to crash.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

NULL Pointer Dereference

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Weakness Enumeration

Related Identifiers

CVE-2026-86134

Affected Products

Fireware Os