What is CVE-2022-25363?

CVE-2022-25363 is a medium-severity vulnerability in Watchguard Fireware, classified under Out-of-bounds Write. CVSS score: 6.5/10. Published 2022-02-24.

How severe is CVE-2022-25363?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Buffer overflow in Watchguard Fireware

CVE-2022-25363

WatchGuard Firebox and XTM appliances allow an authenticated remote attacker with unprivileged credentials to modify privileged management user credentials. This vulnerability impacts Fireware OS before 12.7.2_U2, 12.x before 12.1.3_U8, and 12.2.x through 12.5.x before 12.5.9_U2.

Vulnerability class: Buffer Overflow

Published 2022-02-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.009 (57.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Watchguard Fireware — versions 12.1.3, 12.5.9, 12.7.2

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

www.watchguard.com/support/release-notes/fireware/12/en-US/EN_ReleaseNotes_Fire… (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2022-25363?: CVE-2022-25363 is a medium-severity vulnerability in Watchguard Fireware, classified under Out-of-bounds Write. CVSS score: 6.5/10. Published 2022-02-24.
How severe is CVE-2022-25363?: Medium severity. CVSS v3 base score is 6.5 out of 10.