CVE-2025-9242

CRITICALCVSS 9.8Known Exploited

CISA Known Exploited Vulnerability

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00015 ; https://nvd.nist.gov/vuln/detail/CVE-2025-9242

Remediation deadline: December 3, 2025

Description

WatchGuard Firebox contains an out-of-bounds write vulnerability in the OS iked process that may allow a remote unauthenticated attacker to execute arbitrary code.

Timeline

Published:September 17th, 2025 8:15 AM

Last modified:August 10th, 2026 7:59 PM

Added to KEV:November 12th, 2025

CVSS Scoring

CVSS v3: 9.8 (CRITICAL)

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

Affected Software

From NVD CPE configuration data

Vendors

watchguard

Products

fireware

Weaknesses (CWE)

CWE-787

References & Reports

Advisories, patches, and third-party reports

https://psirt.watchguard.com/CVE-2025-9242Broken Link
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00015Vendor Advisory
https://github.com/watchtowrlabs/watchTowr-vs-WatchGuard-CVE-2025-9242/blob/main/watchTowr-vs-WatchGuard-CVE-2025-9242.pyExploit
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-9242US Government Resource

Source: NIST NVD · Data may lag official sources by up to one minute