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CVE-2026-85102: Check Point Multiple Products Improper Certificate Validation Vulnerability

CVE-2026-85102 is rated critical with a CVSS v3.1 base score of 9.8 and affects Check Point Multiple Products, along with 2 other products in NVD’s configuration data. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available. CISA added it to its Known Exploited Vulnerabilities catalog on 2026-09-22, which means exploitation in the wild has been observed.

Vulnerability 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.

Severity breakdown

CVSS v3.1 9.8: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

  • Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
  • Attack complexity: Low. No special conditions; the attack can be repeated reliably.
  • Privileges required: None. No account or prior access is needed.
  • User interaction: None. No action from any user is needed.
  • Scope: Unchanged. Impact stays within the vulnerable component.
  • Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
  • Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
  • Availability impact: High. Total loss of availability; the component can be shut down.

Underlying weakness

CWE-295: Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.

Affected products

  • Checkpoint Gaia Embedded: from r81.10.00 before r81.10.17; from r82.00.00 before r82.00.10; r81.10.17; r81.10.17 build_996004508; r81.10.17 build_996004620; r81.10.17 build_996004653; r81.10.17 build_996004721; r81.10.17 build_996004892; r81.10.17 build_996004901; r81.10.17 build_996004914; r81.10.17 build_996004936; r82.00.10
  • Checkpoint Gaia OS: from r80 before r81.10; r81.10; r81.10 take_106; r81.10 take_107; r81.10 take_109; r81.10 take_110; r81.10 take_113; r81.10 take_128; r81.10 take_129; r81.10 take_130; r81.10 take_131; r81.10 take_132

References