CVE-2025-14733—WatchGuard Firebox Out of Bounds Write Vulnerability

Vulnerability Name

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.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:

Unknown

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.

Additional Notes

• Check for signs of potential compromise on all internet accessible instances after applying mitigations. For more information please see: https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00027
• https://nvd.nist.gov/vuln/detail/CVE-2025-14733

Related News Articles

• New critical WatchGuard Firebox firewall flaw exploited in attacksDecember 19, 2025

Related Weaknesses

• CWE-787