CVE-2026-48131: Check Point Quantum Security Gateway

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

The VPN service may mishandle an unexpected IKE fragment value received on the IKE port 500/UDP during the early stage of a connection attempt. This can cause the service to terminate unexpectedly, resulting in denial of service (temporary disruption of VPN-related functionality).

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.