Summary
| Parameter | Value |
|---|---|
| CVE ID | CVE-2026-85102 |
| Alert Source | CISA KEV - Active Exploitation |
| CVE Publication Year | 2026 |
| Date Published | 2026-09-22 |
| Vendor | Check Point |
| Product | Quantum Security Gateway (Gaia, Quantum Spark) |
| CVSS Score | 9.8 (critical) |
| EPSS Score | 0.7% (percentile: 50%) |
| CISA KEV | Yes - confirmed active exploitation |
| Ransomware | Not confirmed |
| Remediation Deadline | 2026-09-25 |
Vulnerability Description
Check Point Security Gateway and Check Point Spark Firewall using Site to Site VPN or Remote Access VPN contain an improper certificate validation vulnerability which could allow an unauthenticated remote attacker to execute arbitrary code on the Gateway.
Required Actions
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset’s internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Who Is Affected?
This vulnerability affects Multiple Products by Check Point. Check if your organization uses this software and requires updates.
Sources
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