SB2025091929 - Remote code execution in WatchGuard Firebox iked
Published: September 19, 2025 Updated: November 12, 2025
Security Bulletin ID
SB2025091929
Severity
Critical
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds write (CVE-ID: CVE-2025-9242)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error within the iked process process. A remote non-authenticated attacker can send specially crafted packets to the affected device, trigger an out-of-bounds write and execute arbitrary code on the system.
Note, the vulnerability affects both the mobile user VPN with IKEv2 and the branch office VPN using IKEv2 when configured with a dynamic gateway peer.
Remediation
Install update from vendor's website.