CVE-2026-48131 — HIGH (8.1)

Vulnerability Description

The VPN service may mishandle an unexpected IKE fragment value received on the IKE port 500/UDP during the early stage of a connection attempt. This can cause the service to terminate unexpectedly, resulting in denial of service (temporary disruption of VPN-related functionality).

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-122

References

https://support.checkpoint.com/results/sk/sk184981

FAQ

What is CVE-2026-48131?

CVE-2026-48131 is a vulnerability with a CVSS score of 8.1 (HIGH). The VPN service may mishandle an unexpected IKE fragment value received on the IKE port 500/UDP during the early stage of a connection attempt. This can cause the service to terminate unexpectedly, re...

How severe is CVE-2026-48131?

CVE-2026-48131 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-2026-48131?

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