CVE-2026-85102

9.8

Check Point · Quantum Security Gateway

An improper certificate trust validation vulnerability exists in Check Point Quantum Security Gateways during VPN negotiation, allowing unauthenticated remote code execution.

Executive summary

A critical remote code execution vulnerability in Check Point Quantum Security Gateways allows unauthenticated attackers to compromise the appliance via crafted VPN traffic.

Vulnerability

This flaw involves improper certificate validation (CWE-295) during the VPN negotiation process. An unauthenticated remote attacker can exploit this weakness to execute arbitrary code on the affected Gateway.

Business impact

The potential for unauthenticated remote code execution on a security gateway represents a total compromise of the network perimeter. Given the CVSS score of 9.8, this vulnerability allows attackers to bypass authentication, potentially leading to full system control, unauthorized data exfiltration, and significant operational downtime.

Remediation

Immediate Action: Apply the vendor-recommended Jumbo Hotfix updates as detailed in Check Point security advisory SK1000117.

Proactive Monitoring: Inspect VPN negotiation logs for anomalous certificate exchange patterns and monitor system integrity for unauthorized processes or unexpected binary execution.

Compensating Controls: Deploy strict access control lists at the network perimeter to limit VPN access to trusted IP ranges until the patch is applied.

Exploitation status

Public Exploit Available: No

Analyst recommendation

Due to the critical nature of this vulnerability and the potential for complete gateway compromise, administrators must prioritize the application of the specified Jumbo Hotfix updates immediately. Ensure all Quantum Security Gateways are patched to versions exceeding the stated hotfix levels to mitigate the risk of remote code execution.

More Check Point CVEs

History

  1. Disclosed CVE record published
  2. Collected by CVE Brief via github
  3. Analyst report written
  4. Published in the daily brief critical section

Sources