CVE-2026-86136

HIGHCVSS 7.1/10

Last modified

CVE-2026-86136 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. A missing authorization vulnerability in the wgagent management daemon's session initialization function allows an authenticated, low-privileged user (including a read-only or guest administrator account) to crash the wgagent process and read arbitrary files accessible to the daemon by submitting a specially crafted management API request..

Description

A missing authorization vulnerability in the wgagent management daemon's session initialization function allows an authenticated, low-privileged user (including a read-only or guest administrator account) to crash the wgagent process and read arbitrary files accessible to the daemon by submitting a specially crafted management API request.

Metrics

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
WatchGuardFireware OS>= 2026.0, < 2026.3.2; >= 2025.0, < 2026.2.3; >= 12.0, < 12.12.3
WatchGuardFireware OS>= 12.0, < 12.5.21

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-86136?
A missing authorization vulnerability in the wgagent management daemon's session initialization function allows an authenticated, low-privileged user (including a read-only or guest administrator account) to crash the wgagent process and read arbitrary files accessible to the daemon by submitting a specially crafted management API request.
How severe is CVE-2026-86136?
CVE-2026-86136 has a CVSS score of 7.1/10 (HIGH severity).
How do I fix CVE-2026-86136?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST