What is CVE-2026-85102?

CVE-2026-85102 is a critical-severity vulnerability in Checkpoint Quantum Security Gateway, classified under Improper Certificate Validation. CVSS score: 9.8/10. Published 2026-09-09.

How severe is CVE-2026-85102?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Checkpoint Quantum Security Gateway

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.

Vulnerability class: Improper Certificate Validation

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Checkpoint Quantum Security Gateway — versions R81.20 with Jumbo Hotfix Take 165 or below, R82 with Jumbo Hotfix Take 125 or below, R82.10 with Jumbo Hotfix Take 43 or below

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

cve@checkpoint.com

Frequently asked questions

What is CVE-2026-85102?: CVE-2026-85102 is a critical-severity vulnerability in Checkpoint Quantum Security Gateway, classified under Improper Certificate Validation. CVSS score: 9.8/10. Published 2026-09-09.
How severe is CVE-2026-85102?: Critical severity. CVSS v3 base score is 9.8 out of 10.