WatchGuard Firebox Out of Bounds Write Vulnerability
Description
WatchGuard Fireware OS iked process contains an out of bounds write vulnerability in the OS iked process. This vulnerability may allow a remote unauthenticated attacker to execute arbitrary code and affects both the mobile user VPN with IKEv2 and the branch office VPN using IKEv2 when configured with a dynamic gateway peer.
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Turn on WatchGuard alerts
Details
- Vendor
- WatchGuard
- Product
- WatchGuard Firebox (Fireware OS)
- CVE
- CVE-2025-14733
- Affected versions
- Fireware OS 2025.1: from 2025.1 to 2025.1.4 (excluded) — fixed in 2025.1.4
Fireware OS 12: from 12.0 to 12.11.6 (excluded); from 12.0 to 12.3.1+728352 (excluded); from 12.0 to 12.5.15 (excluded) — fixed in 12.11.6, 12.3.1+728352, 12.5.15
Fireware OS 11: from 11.10.2 to 11.12.4+541730 (from the advisory and NVD; check the exact builds in the official advisory) - CVSS score
- 9.8
- Actively exploited
- Yes, listed in the CISA Known Exploited Vulnerabilities catalog
- CISA due date
- December 26, 2025 (deadline for US federal agencies: a good benchmark for you too)
- Source
- CISA KEV – original advisory
- Published
- December 19, 2025
The description and the recommended action are quoted from the public advisory; severity, exploitation status and affected versions are compiled automatically from public sources and may contain errors. The vendor's original advisory prevails: check it before taking action. This information is provided without warranty and does not replace a professional assessment.