CVEs / CVE-2026-85102
CVE-2026-85102: Check Point Multiple Products Improper Certificate Validation Vulnerability
- Known exploited in the CISA KEV catalog since 22 Sep 2026
- critical 9.8 CVSS 3.1 (from the CNA)
- EPSS 54.1% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
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.
Description
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| checkpoint Quantum Security Gateway | R82.10 with Jumbo Hotfix Take 43 or below | — |
| checkpoint Quantum Security Gateway | R82 with Jumbo Hotfix Take 125 or below | — |
| checkpoint Quantum Security Gateway | R81.20 with Jumbo Hotfix Take 165 or below | — |
Exploitation
| In CISA KEV since | 22 Sep 2026 |
|---|---|
| Due date for US federal agencies | 25 Sep 2026 |
| Used in ransomware campaigns | Unknown |
| 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. |
Severity
| CVSS 3.1 | 9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HScored by the CNA ([email protected]) |
|---|---|
| Weakness | CWE-295 |
References
- CVE-2026-85102 on NVD
- CVE-2026-85102 in the CISA KEV catalog
- https://support.checkpoint.com/results/sk/sk1000117 (cited by CISA)
- https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk (cited by CISA)
- https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk (cited by CISA)
- https://support.checkpoint.com/results/sk/sk1000117 Mitigation, Patch, Vendor Advisory
- https://blog.checkpoint.com/security/security-advisory-action-required-active-exploitation-of-cve-2026-85102-and-a-management-pre-authentication-vulnerability-cve-2026-93616/ Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-85102 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.