CVE-2026-13383
WatchGuard Firebox ikestubd Out of Bounds Write Vulnerability
Description
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS ikestubd process could allow an authenticated privileged user to execute arbitrary code via a specially crafted requests to the Management Web UI.This vulnerability affects Fireware OS 12.1 up to and including 12.12 and 2025.1 up to and including 2026.2.
INFO
Published Date :
July 2, 2026, 11:05 p.m.
Last Modified :
July 2, 2026, 11:05 p.m.
Remotely Exploit :
Yes !
Source :
WatchGuard
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | HIGH | 5d1c2695-1a31-4499-88ae-e847036fd7e3 |
Solution
- Update Fireware OS to a non-vulnerable version.
- Apply security patches from the vendor.
- Restrict access to the Management Web UI.
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