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CVE-2025-9242

UNKNOWN
Published 2025-09-17T07:29:23.738Z
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No CVSS data available

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.

Understanding This Vulnerability

This Common Vulnerabilities and Exposures (CVE) entry provides detailed information about a security vulnerability that has been publicly disclosed. CVEs are standardized identifiers assigned by MITRE Corporation to track and catalog security vulnerabilities across software and hardware products.

The severity rating (UNKNOWN) indicates the potential impact of this vulnerability based on the CVSS (Common Vulnerability Scoring System) framework. Higher severity ratings typically indicate vulnerabilities that could lead to more significant security breaches if exploited. Security teams should prioritize remediation efforts based on severity, exploit availability, and the EPSS (Exploit Prediction Scoring System) score, which predicts the likelihood of exploitation in the wild.

If this vulnerability affects products or systems in your infrastructure, we recommend reviewing the affected products section, checking for available patches or updates from vendors, and implementing recommended workarounds or solutions until a permanent fix is available. Organizations should also monitor security advisories and threat intelligence feeds for updates about active exploitation of this vulnerability.

Available Exploits

WatchGuard IKEv2 Out-of-Bounds Write Vulnerability

WatchGuard Fireware OS 11.10.2 to 11.12.4_Update1, 12.0 to 12.11.3, and 2025.1 contains an out-of-bounds write caused by improper handling in Mobile User VPN and Branch Office VPN with IKEv2 dynamic gateway peer, letting remote unauthenticated attackers execute arbitrary code.

ID: CVE-2025-9242
Author: pussycat0xDhiyaneshDKwatchTowr Critical

Related News

WatchGuard Issues Fix for 9.3-Rated Firebox Firewall Vulnerability

WatchGuard has issued a critical security alert for its Firebox firewalls due to a serious vulnerability, CVE-2025-9242. Learn what this 'out-of-bounds write' flaw means, which Fireware OS versions are affected, and the urgent steps to take to protect your ne…

HackRead 2025-09-19 09:21

Affected Products

References

Credits & Acknowledgments

finder

btaol

Known Exploited Vulnerability

This vulnerability is actively being exploited in the wild

View KEV Details

Remediation Status

Due Soon

Due Date

December 3, 2025 (10 days remaining)

Added to KEV

November 12, 2025

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.

Affected Product

Vendor/Project: WatchGuard
Product: Firebox

Ransomware Risk

Known Ransomware Use
KEV Catalog Version: 2025.11.21 Released: November 21, 2025

EU Vulnerability Database

Monitored by ENISA for EU cybersecurity

EU Coordination

EU Coordinated

Exploitation Status

No Known Exploitation

ENISA Analysis

Malicious code in bioql (PyPI)

Affected Products (ENISA)

watchguard
fireware os

ENISA Scoring

CVSS Score (4.0)

9.3
/10
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

EPSS Score

0.300
probability

Data provided by ENISA EU Vulnerability Database. Last updated: October 3, 2025

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed CRITICAL

GHSA-g6q4-chqv-724q

Advisory Details

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.

CVSS Scoring

CVSS Score

9.0

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Advisory provided by GitHub Security Advisory Database. Published: September 17, 2025, Modified: November 13, 2025

References

Published: 2025-09-17T07:29:23.738Z
Last Modified: 2025-09-18T03:55:13.473Z
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