CVE-2026-48132 PUBLISHED

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

Assigner: checkpoint
Reserved: 20.05.2026 Published: 26.05.2026 Updated: 26.05.2026

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).

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 8.1

Product Status

Vendor checkpoint
Product Quantum Security Gateway
Versions
  • Version R82.10 with Jumbo Hotfix Take 6 or below is affected
  • Version R82 with Jumbo Hotfix Take 91 or below is affected
  • Version R81.20 with Jumbo Hotfix Take 127 or below is affected
  • Version All releases from R81.10 and below is affected

References

Problem Types

  • CWE-125: Out-of-bounds Read CWE