What is CVE-2026-85102?
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.
Timeline
- 2026-09-09Published to the U.S. National Vulnerability Database (NVD)
- 2026-09-14First covered in a defend.network daily briefing
- 2026-09-22Added to the CISA Known Exploited Vulnerabilities (KEV) catalog
- 2026-09-23NVD record last updated
- 2026-09-25CISA federal remediation deadline (BOD 22-01)
CISA Known Exploited Vulnerability
Check Point Multiple Products Improper Certificate Validation Vulnerability
Affected product
Check Point Multiple Products
NVD also lists CPE entries for: Checkpoint Gaia Embedded, Checkpoint Quantum Spark 1530, Checkpoint Quantum Spark 1535, Checkpoint Quantum Spark 1550, Checkpoint Quantum Spark 1555
Remediation Steps
- Apply the vendor security update for Check Point Security Gateway, Check Point Spark Firewall as a priority.
- Restrict network exposure of the affected service to trusted sources until patched.
- Review logs and detections for indicators of exploitation.
- Confirm fixed versions against the official vendor advisory before deploying.
References
- https://support.checkpoint.com/results/sk/sk1000117
- https://blog.checkpoint.com/security/security-advisory-action-required-active-exploitation-of-cve-2026-85102-and-a-management-pre-authentication-vulnerability-cve-2026-93616/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-85102
- https://nvd.nist.gov/vuln/detail/CVE-2026-85102
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Referenced in our briefings & reports
- Vulnerability Priority Report – Week 3 of October 2026 (October 19 – 25)
- Vulnerability Priority Report – Week 2 of October 2026 (October 12 – 18)
- Vulnerability Priority Report – Week 1 of October 2026 (October 5 – 11)
- Vulnerability Priority Report – Week 4 of September 2026 (September 28 – October 4)
- Vulnerability Priority Report – Week 3 of September 2026 (September 21 – 27)
- Check Point RCE, MikroTik SSH chain, malicious npm/Terraform packages in active exploitation (2026-09-24)
- Check Point VPN & Tencent flaws in active exploitation; RubyGems RCE confirmed (2026-09-14)
Related vulnerabilities
- CVE-2026-50751 – Check Point Security Gateway (same product)
- CVE-2026-93616 – Check Point Multiple Products (same product)
- CVE-2026-16232 – Check Point SmartConsole (same vendor)
- CVE-2026-20184 (same weakness: CWE-295)
Browse all tracked CVEs in the defend.network CVE database →
🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.