CVE-2026-90441

HIGHCVSS 8.1/10EPSS 0.21%

Last modified

CVE-2026-90441 is a high-severity vulnerability rated 8.1/10 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.. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

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

VendorProductVersions
WatchguardFireware>= 12.0, < 12.5.21
WatchguardFireware>= 12.12, < 12.12.3
WatchguardFireware>= 2025.0, < 2026.2.3
WatchguardFireware>= 2026.3, < 2026.3.2

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-90441?
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-2026-90441?
CVE-2026-90441 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.
How do I fix CVE-2026-90441?
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