CVE-2026-48132 HIGH

CVE-2026-48132: VPN service may restart unexpectedly when processing IKE traffic over NAT-T 4500/UDP

Vendor Checkpoint
Product Quantum Security Gateway
Weakness CWE-125
Published May 26, 2026
Last update June 2, 2026
View on NVD All CVEs

CVSS base score

8.1/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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).

Key dates

02Disclosure timeline

May 26, 2026 CVE published
June 2, 2026 Record updated