---
title: "CVE-2026-13043: WatchGuard Endpoint Security - Authentication Bypass"
description: "WatchGuard endpoint security contains a missing authentication vulnerability in Kernel Memory Access Driver (PSKMAD), letting local authenticated attackers bypass access control and disclose kernel and process memory."
url: https://panop.io/threat-heartbeat/CVE-2026-13043/
---

# CVE-2026-13043 WatchGuard Endpoint Security - Authentication Bypass

WatchGuard endpoint security contains a missing authentication vulnerability in Kernel Memory Access Driver (PSKMAD), letting local authenticated attackers bypass access control and disclose kernel and process memory.

CVSS base score 9.3 /10

Critical

CISA KEV

Not listed

Public exploit

Proof of concept available

Authentication

Required

EPSS

0.14% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-13043)

## Details

Type

Authentication Bypass

Impact

Information Disclosure

CVSS vector

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Published

1 October 2026

Updated

15 October 2026

Weakness

[CWE-306](https://cwe.mitre.org/data/definitions/306.html)

## Vendor fix

Update to the latest version of WatchGuard endpoint security.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-13043](https://nvd.nist.gov/vuln/detail/CVE-2026-13043)
- [https://psirt.watchguard.com/CVE-2026-13043](https://psirt.watchguard.com/CVE-2026-13043)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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