CVE-2026-48132 — HIGH (8.1)

Vulnerability Description

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).

CVSS Score

8.1

HIGH

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-125

References

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

FAQ

What is CVE-2026-48132?

CVE-2026-48132 is a vulnerability with a CVSS score of 8.1 (HIGH). 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 ...

How severe is CVE-2026-48132?

CVE-2026-48132 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-48132?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.