CVE-2026-19317

HIGH CVSS 4.0: 8.7 EPSS 0.32%
Updated Sep 04, 2026
An
Parameter Value
CVSS 8.7 (HIGH)
Type CWE-191 (Integer Underflow), CWE-125 (Out-of-bounds Read)
Vendor An
Public PoC No

An out-of-bounds read 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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v4.0