CVE-2025-9242
CRITICALCVSS v3
9.8
CRITICAL
EPSS Score
61.6%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow a remote unauthenticated attacker to execute arbitrary code. This vulnerability affects both the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer.This vulnerability affects Fireware OS 11.10.2 up to and including 11.12.4_Update1, 12.0 up to and including 12.11.3 and 2025.1.
Technical Details
- Published
- 9/17/2025
Frequently Asked Questions
What is CVE-2025-9242?
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow a remote unauthenticated attacker to execute arbitrary code. This vulnerability affects both the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer.This vulnerability affects Fireware OS 11.10.2 up to and including 11.12.4_Update1, 12.0 up to and including 12.11.3 and 2025.1.
Is CVE-2025-9242 actively exploited?
Active exploitation of CVE-2025-9242 has not been confirmed. The EPSS score is 61.6%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2025-9242?
CVE-2025-9242 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2025-9242 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.