CVE-2026-19314

Name of the Vulnerable Software and Affected Versions WatchGuard Fireware OS (affected versions not specified)

Description An integer underflow in the iked process allows a remote unauthenticated attacker to cause a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic. An integer underflow occurs when an arithmetic operation results in a value smaller than the minimum value the variable can hold, often causing the system to wrap around to a very large positive number.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.