CVEvulnerability

CVE-2025-14733

9.3 CRITICAL Known exploited Published 2025-12-19 Modified 2026-09-09 Official page ↗

CISA Known Exploited Vulnerability

WatchGuard Firebox Out of Bounds Write Vulnerability — WatchGuard Firebox

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.

Added to KEV: 2025-12-19
Remediation due: 2025-12-26
Ransomware use: Known
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.
Notes: 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

Status: Analyzed
Published: 2025-12-19
Last modified: 2026-09-09
Assigner: 5d1c2695-1a31-4499-88ae-e847036fd7e3
CVSS 4.0 (5d1c2695-1a31-4499-88ae-e847036fd7e3): 9.3 CRITICAL — 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Red
CVSS 3.1 ([email protected]): 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses: CWE-787

Description

An Out-of-bounds Write vulnerability in the WatchGuard Fireware OS iked process 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. If the Firebox was previously configured with the mobile user VPN with IKEv2 or a branch office VPN using IKEv2 to a dynamic gateway peer, and both of those configurations have since been deleted, that Firebox may still be vulnerable if a branch office VPN to a static gateway peer is still configured.

Affected configurations

• watchguard fireware (>= 11.10.2 < 12.5.15) • watchguard fireware (>= 11.10.2 < 12.11.6) • watchguard fireware (>= 2025.1 < 2025.1.4)

Weakness · CWE (1)

CWE-787 Out-of-bounds Write weakness

References