VULNERABILITY INTELLIGENCE

CVE-2026-78011

CVSS score8.7 HIGH

EPSS probability0.54%

CISA KEVNot currently listed

Published2026-08-28

Last modified2026-09-03

Description

An integer underflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to create a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic.