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

CVE-2026-48132

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

Description (CNA)

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 (CNA)

Vendor / product	Versions
checkpoint / Quantum Security Gateway	affected R82.10 with Jumbo Hotfix Take 6 or below; affected R82 with Jumbo Hotfix Take 91 or below; affected R81.20 with Jumbo Hotfix Take 127 or below; affected All releases from R81.10 and below

CWE

CWE-125

References

https://support.checkpoint.com/results/sk/sk184982

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.