CVE-2025-9242: WatchGuard Firebox iked Out of Bounds Write Vulnerability
In CISA’s Known Exploited Vulnerabilities catalog: WatchGuard Firebox Out-of-Bounds Write Vulnerability.
Added , federal remediation due . Known ransomware use: Unknown.
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.
Description
An Out-of-bounds Write vulnerability in the WatchGuard Fireware OS iked process 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. If the Firebox was previously configured with the mobile user VPN with IKEv2 or a branch office VPN using IKEv2 to a dynamic gateway peer, and both of those configurations have since been deleted, that Firebox may still be vulnerable if a branch office VPN to a static gateway peer is still configured.
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · CWE-787
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
WatchGuard: Fireware OS
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- psirt.watchguard.com/CVE-2025-9242 (opens in new tab)
- www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00015 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)