CVE-2026-48134: Check Point Quantum Security Gateway

Medium severity, CVSS 5.6. EPSS: 0.3% chance of exploitation in the next 30 days.

When the DLP is active, the UserCheck Web Portal contains an input-handling issue in the UserChoice flow. Under specific conditions, an attacker who can access the UserCheck Ask page could attempt to manipulate the Security Gateway's stored DLP/UserCheck incident information. This could lead to disruptions such as loss of stored incident entries, incorrect handling of pending approvals, or resource impact if the issue is abused repeatedly. Exposure is reduced if the UserCheck Portal is not accessible from untrusted networks.

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.