CVE-2026-85102

Improper Certificate Validation in Quantum Security Gateway

CVSS 9.8 critical · checkpoint Quantum Security Gateway · published 2026-09-09

Improper certificate trust validation during VPN negotiation in Check Point Quantum Security Gateway may allow an unauthenticated remote attacker to execute arbitrary code on the Gateway.

NVD · CVE.org

Coverage 2 sources

1. 2026-09-22 CISA Cybersecurity Advisories high CISA Adds Four Known Exploited Vulnerabilities to Catalog

   CISA added four new vulnerabilities to its Known Exploited Vulnerabilities Catalog, indicating active exploitation.

2. 2026-09-23 Help Net Security critical Attackers hit Check Point Management Servers and Spark firewalls, F5 BIG-IP APM instances

   Check Point releases emergency fixes for critical Management Server vulnerability exploited since July 23, 2026.

Mentioned with

CVE-2026-93616 CVE-2026-93952 CVE-2026-94127

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• CVE-2026-88772 Memory overflow vulnerability leading to Remote Code Execution or Denial of Service CVSS 9.5 · 3 articles · 2026-09-28
• CVE-2026-88771 A remote code execution vulnerability exists due to improper input validation, which can allow an unauthenticated attacker to execute arbitrary commands CVSS 9.5 · 3 articles · 2026-09-28