What is CVE-2022-31791?

CVE-2022-31791 is a high-severity vulnerability in Watchguard Fireware. CVSS score: 7.8/10. Published 2022-09-06.

How severe is CVE-2022-31791?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Watchguard Fireware

CVE-2022-31791

WatchGuard Firebox and XTM appliances allow a local attacker (that has already obtained shell access) to elevate their privileges and execute code with root permissions. This is fixed in Fireware OS 12.8.1, 12.5.10, and 12.1.4.

Published 2022-09-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (12.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 12.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Watchguard Fireware — versions 12.6.1, 12.6.3, 12.6.4

References

www.watchguard.com/wgrd-psirt/advisory/wgsa-2022-00018 (Vendor Advisory)

Frequently asked questions

What is CVE-2022-31791?: CVE-2022-31791 is a high-severity vulnerability in Watchguard Fireware. CVSS score: 7.8/10. Published 2022-09-06.
How severe is CVE-2022-31791?: High severity. CVSS v3 base score is 7.8 out of 10.