What is CVE-2026-13054?

CVE-2026-13054 is a high-severity vulnerability in Watchguard Fireboxcloud, classified under Path Traversal. CVSS score: 7.2/10. Published 2026-07-03.

How severe is CVE-2026-13054?

High severity. CVSS v3 base score is 7.2 out of 10.

Path Traversal in Watchguard Fireboxcloud

CVE-2026-13054

A path traversal vulnerability in the WatchGuard Fireware OS Management Web UI allows a privileged authenticated attacker to write arbitrary files on the Firebox's filesystem.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2026-07-03 · last modified 2026-08-28.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (47.3th percentile), scored 2026-10-08.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-22 — Path Traversal

References

5d1c2695-1a31-4499-88ae-e847036fd7e3 (vendor-advisory, Vendor Advisory)
5d1c2695-1a31-4499-88ae-e847036fd7e3 (vendor-advisory)

Frequently asked questions

What is CVE-2026-13054?: CVE-2026-13054 is a high-severity vulnerability in Watchguard Fireboxcloud, classified under Path Traversal. CVSS score: 7.2/10. Published 2026-07-03.
How severe is CVE-2026-13054?: High severity. CVSS v3 base score is 7.2 out of 10.