CVE-2026-13043: WatchGuard Endpoint Security Missing Authentication in Kernel Memory Access Driver Allows Arbitrary Kernel Memory Access
A missing authentication vulnerability in the Kernel Memory Access Driver (PSKMAD) used by WatchGuard endpoint security products allows a local, authenticated attacker to bypass the driver's access-control handshake and issue arbitrary privileged commands to the driver, resulting in disclosure of kernel and process memory.
Affected Software
Event History
Frequently Asked Questions
Who is exposed to exploitation?
Systems running the WatchGuard Kernel Memory Access Driver (PSKMAD) are exposed. Exploitation requires local access by an authenticated attacker.
What access does an attacker need?
The attacker must be able to authenticate and execute locally on the affected system. The issue is not described as remotely exploitable.
What is the likely impact after successful exploitation?
An attacker can bypass the driver's access-control handshake and send arbitrary privileged commands to the driver. This can disclose kernel memory and process memory.