CVE-2022-31789

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-09-06 · updated 2026-06-17
Weakness: CWE-190

Description

An integer overflow in WatchGuard Firebox and XTM appliances allows an unauthenticated remote attacker to trigger a buffer overflow and potentially execute arbitrary code by sending a malicious request to exposed management ports. This is fixed in Fireware OS 12.8.1, 12.5.10, and 12.1.4.

Affected products

WatchGuard Fireware OS: from 12.0.0 before 12.1.4; from 12.2.0 before 12.5.10; 12.6.1-u1, 12.6.1-u3, 12.6.3, 12.6.4, 12.7.0-u1, 12.7.1 (+2) — fixed in 12.1.4, 12.5.10

How to fix

Upgrade to a fixed version: WatchGuard Fireware OS 12.1.4, 12.5.10. Check the vendor advisory for mitigations.

References

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2022-00015
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2022-00015

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