Check Point Firewall Certificate Validation Bypass Across Site-to-Site and Remote Access VPN Carries a Lapsed September 25th CISA KEV Requirement for Covered Entities

Last refreshed2026-09-27

Status: KEV | Advisory ID: CVE-2026-85102

Key Details

CVE	CVE-2026-85102
Vulnerability Name	Check Point Multiple Products Improper Certificate Validation Vulnerability
Affected products	Check Point Multiple Products
Exploitation status	Listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, indicating confirmed active exploitation.
Classified as	CWE-295 (Improper Certificate Validation)
KEV listing	Added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2026-09-22.
Exploitation prediction (EPSS)	0.99% probability of exploitation in the next 30 days (61% percentile) -- FIRST.org's EPSS model.
Federal remediation deadline	2026-09-25 (CISA KEV, Binding Operational Directive).

Affected Products, Subsystems & Sectors

Vendor	Product	Affected Versions	Patch Status
Check Point	Multiple Products

Vendor

Product

Affected Versions

Patch Status

Check Point

Multiple Products

Subsystems	General OT
Sectors	Multiple

What to Know

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

Monitor Check Point's web page for any future patch releases.

References

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-85102
CVE	https://www.cve.org/CVERecord?id=CVE-2026-85102

Source

Reference

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-85102

CVE

https://www.cve.org/CVERecord?id=CVE-2026-85102

KEV Required Action

Field	Value
KEV Link	https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Date Added to KEV	2026-09-22
Required Action Due Date	2026-09-25
Required Action	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.

Field

Value

KEV Link

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

Date Added to KEV

2026-09-22

Required Action Due Date

2026-09-25

Required Action

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.