CVE-2026-13043
WatchGuard Endpoint Security Missing Authentication in Kernel Memory Access Driver Allows Arbitrary Kernel Memory Access
- State
- Published
- Severity
- 9.3 Critical
- Published
- Oct 1, 2026
- Updated
- Oct 1, 2026
- Reserved
- Jun 23, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H | WatchGuard |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
Endpoint SecurityWatchGuard |
|
References
- https://psirt.watchguard.com/CVE-2026-13043vendor-advisory
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