CVE-2025-14733

CRITICALCVSS 9.8Known Exploited

CISA Known Exploited Vulnerability

Check for signs of potential compromise on all internet accessible instances after applying mitigations. For more information please see: https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00027 ; https://nvd.nist.gov/vuln/detail/CVE-2025-14733

Remediation deadline: December 26, 2025

Ransomware use: Known

Description

WatchGuard Fireware OS iked process contains an out of bounds write vulnerability in the OS iked process. This vulnerability may allow a remote unauthenticated attacker to execute arbitrary code and affects both the mobile user VPN with IKEv2 and the branch office VPN using IKEv2 when configured with a dynamic gateway peer.

Timeline

Published:December 19th, 2025 1:16 AM

Last modified:September 9th, 2026 4:17 AM

Added to KEV:December 19th, 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

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