Detections
Analytics

CVE-2025-9242

critical

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.

References

https://www.securityweek.com/in-other-news-600k-hit-by-healthcare-breaches-major-shinyhunters-hacks-deepseeks-coding-bias/

https://hackread.com/watchguard-fix-for-firebox-firewall-vulnerability/

https://www.bleepingcomputer.com/news/security/watchguard-warns-of-critical-vulnerability-in-firebox-firewalls/

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00015

Details

Source: Mitre, NVD

Published: 2025-09-17

Updated: 2025-09-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 9.3

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: Critical

EPSS

EPSS: 0.00283