CVE-2025-9242

9.8 CRITICAL CISA KEV - Actively Exploited
Published: September 17, 2025 Modified: November 14, 2025
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00015
Source: 5d1c2695-1a31-4499-88ae-e847036fd7e3
Vendor Advisory
https://github.com/watchtowrlabs/watchTowr-vs-WatchGuard-CVE-2025-9242/blob/main/watchTowr-vs-WatchGuard-CVE-2025-9242.py
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-9242
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
73.5%
99th percentile
Exploitation Status
Actively Exploited
Remediation due: 2025-12-03

Weaknesses (CWE)

CWE-787

Affected Vendors

watchguard

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