CVE-2025-9242

EUVD-2025-29699
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 99.8%
Affected Products (NVD)
VendorProductVersion
watchguardfireware
11.10.2 ≤
𝑥
< 12.11.4
watchguardfireware
11.10.2 ≤
𝑥
< 12.5.13
watchguardfireware
2025.1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://psirt.watchguard.com/CVE-2025-9242
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00015
https://github.com/watchtowrlabs/watchTowr-vs-WatchGuard-CVE-2025-9242/blob/main/watchTowr-vs-WatchGuard-CVE-2025-9242.py
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-9242