Check Point Multiple Products Improper Certificate Validation 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.
What to do
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.
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Details
- Vendor
- Check Point
- Product
- Check Point Security Gateway
- CVE
- CVE-2026-85102
- Affected versions
- Gaia Embedded (Spark): from R81.10.00 to R81.10.17 (build up to 996004936)
Gaia Embedded (Spark): from R82.00.00 to R82.00.10 (build up to 998002279)
Gaia OS: from R80 to before R81.10
Gaia OS: R81.10 (take up to 187) (from the advisory and NVD; check the exact builds in the official advisory) - CVSS score
- 9.8
- Actively exploited
- Yes, listed in the CISA Known Exploited Vulnerabilities catalog
- CISA due date
- September 25, 2026 (deadline for US federal agencies: a good benchmark for you too)
- Source
- CISA KEV – original advisory
- Published
- September 22, 2026
The description and the recommended action are quoted from the public advisory; severity, exploitation status and affected versions are compiled automatically from public sources and may contain errors. The vendor's original advisory prevails: check it before taking action. This information is provided without warranty and does not replace a professional assessment.