Actively exploited
Listed in CISA’s Known Exploited Vulnerabilities catalog since December 19, 2025.
CVE-2025-14733
WatchGuard Firebox Out of Bounds Write Vulnerability
Added to KEV December 19, 2025
Alert details
- Source feed
- CISA KEV
- CVE ID
- CVE-2025-14733
- CWE
- CWE-787
- Affected products
- Firebox · WatchGuard Firebox · WatchGuard
What happened
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 it means for your business
WatchGuard Firebox is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2025-14733). 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. CISA remediation due date: 2025-12-26. If you need help checking exposure, call (864) 335-9223.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date: December 26, 2025
Sources
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