— Unscored

Check Point Multiple Products Improper Certificate Validation Vulnerability

CVE-2026-85102 Exploited

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.

Being exploited in the wild

Catalogued 22 September 2026 · US federal remediation deadline 25 September 2026

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…

Exploit code is also public: Public PoC

Public PoCaduli198/CVE-2026-851021 stars

Assessment

CVSS: Not yet scored
Severity: Unscored
Known exploited: Yes — listed in the CISA KEV catalog
Exploit availability: CISA KEV, Public PoC
Published: 22 September 2026
Last updated: 22 September 2026
Affected: Check Point · Multiple Products
Weakness: CWE-295

At the source

CISA KEV

References

https://www.cisa.gov/known-exploited-vulnerabilities-catalog

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