CVE-2025-14733

What it is

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.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.

In the wild

CISA lists this as exploited in real attacks. Treat as urgent.

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2025-12-15 17:47 UTC ReservedThe CVE id was reserved by its CNA
2. 2025-12-19 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
3. 2025-12-19 01:16 UTC PublishedDisclosed publicly on CVE.org and NVD
4. 2025-12-26 Remediation deadlineCISA's due date for federal agencies to fix it
5. 2026-09-09 04:17 UTC Last updatedMost recent change to the record

Details

Published

2025-12-19 01:16 UTC

Last modified

2026-09-09 04:17 UTC

Added to CISA KEV

2025-12-19

Exploit probability

29.4% · EPSS, next 30 days

Weakness

CWE-787 · Out-of-bounds write

Record status

Analyzed

Affected

• Watchguard Fireware < 12.5.15
• Watchguard Fireware < 12.11.6
• Watchguard Fireware < 2025.1.4

Attack profile CVSS 4.0 · 9.3

Attack vector

Network

Complexity

Low

Attack requirements

None

Privileges needed

None

User interaction

None

Confidentiality

High

Integrity

High

Availability

High