ACTIVELY EXPLOITED
CVE-2025-14733: WatchGuard Firebox Out of Bounds Write Vulnerability
| Vendor | WatchGuard |
|---|---|
| Product | Firebox |
| Actively exploited | Yes |
| Added to CISA KEV | 19 Dec 2025 |
| CISA federal deadline | 26 Dec 2025 |
| Ransomware use | Known |
| Weakness (CWE) | CWE-787 |
Required action (CISA's text)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Description (NVD)
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.
SOURCES
Other WatchGuard flaws
- CVE-2025-9242: WatchGuard Firebox Out-of-Bounds Write Vulnerability
- CVE-2022-23176: WatchGuard Firebox and XTM Privilege Escalation Vulnerability
- CVE-2022-26318: WatchGuard Firebox and XTM Appliances Arbitrary Code Execution
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.