Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-85102

CVE-2026-85102CRITICAL

checkpoint Quantum Security Gateway — Improper Certificate Validation in Quantum Security Gateway

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  H  H  H    9.8   .0755   94.3   YES

AFFECTED
  Product                   Versions                                     Fixed
  Quantum Security Gateway  R82.10 with Jumbo Hotfix Take 43 or below –  —

TIMELINE
  Sep 3   Reserved by checkpoint
  Sep 9   Published (CNA: checkpoint)
  Sep 22  ADDED TO KEV — CVE-2026-85102 (checkpoint Quantum Security Gateway). Remediation due September 25, 2026.
  Sep 26  DUE DATE PASSED — CVE-2026-85102 (checkpoint Quantum Security Gateway). CISA remediation deadline was September 25, 2026; still in catalog.

CWE-295 · CNA: checkpoint · CVSS v3.1 · 3 references · NVD status: Analyzed · KEV due September 25, 2026

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.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
September 3, 2026	Reserved	Reserved by checkpoint
September 9, 2026	Published	Published (CNA: checkpoint)
September 22, 2026	KEV ADDED	ADDED TO KEV — CVE-2026-85102 (checkpoint Quantum Security Gateway). Remediation due September 25, 2026.
September 26, 2026	DUE DATE PASSED	DUE DATE PASSED — CVE-2026-85102 (checkpoint Quantum Security Gateway). CISA remediation deadline was September 25, 2026; still in catalog.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
checkpoint	Quantum Security Gateway	—	R82.10 with Jumbo Hotfix Take 43 or below	—

Weaknesses

CWE-295

References (3)

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://support.checkpoint.com/results/sk/sk1000117 [Mitigation, Patch, Vendor Advisory]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-85102 [US Government Resource]

Authoritative record: CVE-2026-85102 at cve.org

Vendors: checkpoint

Weaknesses: CWE-295

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-85102 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.