WatchGuard Firebox Out of Bounds Write
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA deadline 2025-12-26 · passed 8 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
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.
Who is affected
WatchGuard Firebox. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-787.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 8 months ago
Sources
- NVD entry for CVE-2025-14733 nvd.nist.gov/vuln/detail/CVE-2025-14733
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- watchguard.com www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00027
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2025-14733