CVE-2026-48132: Check Point Quantum Security Gateway

High severity, CVSS 8.1. EPSS: 0.4% chance of exploitation in the next 30 days.

The Security Gateway does not correctly validate a length value in certain IKE packets when NAT-T is used (4500/UDP). As a result, a specially crafted or malformed packet can cause the VPN processing service to terminate unexpectedly, leading to denial of service (temporary interruption of VPN negotiations/traffic).

Affected products

• Check Point Quantum Security Gateway: up to and including R82.10; up to and including R81.20; up to and including R81.10

Published 2026-05-26. Last modified 2026-07-24.