CVE-2026-19315 CRITICAL

CVE-2026-19315: Fireware OS Pre-Authentication Type Confusion in iked Allows Remote Code Execution

Vendor Watchguard
Product Fireware OS
Weakness CWE-125
Published August 27, 2026
Last update August 29, 2026
View on NVD All CVEs

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

A type confusion vulnerability in the iked process of WatchGuard Fireware OS allows a remote unauthenticated attacker to execute arbitrary code by sending specially crafted network traffic.

Key dates

02Disclosure timeline

August 27, 2026 CVE published
August 29, 2026 Record updated