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CVE-2026-50751: Check Point Security Gateway Improper Authentication Vulnerability

CVE-2026-50751 is rated critical with a CVSS v3.1 base score of 9.3 and affects Check Point Security Gateway, 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. CISA added it to its Known Exploited Vulnerabilities catalog on 2026-06-08, which means exploitation in the wild has been observed.

Vulnerability description

A logic flow weakness in Remote Access and Mobile Access certificate validation in deprecated IKEv1 key exchange allows an unauthenticated remote attacker to bypass user authentication and establish a remote access VPN connection without a valid user password.

Severity breakdown

CVSS v3.1 9.3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

  • 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: Changed. Impact reaches beyond the vulnerable component to other resources.
  • Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
  • Integrity impact: Low. Some data can be modified.
  • Availability impact: None. No effect on availability.

Underlying weakness

CWE-287: Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected products

  • Checkpoint Gaia OS: from r80.40 before r81.20; r81.20; r81.20 take_10; r81.20 take_101; r81.20 take_103; r81.20 take_105; r81.20 take_111; r81.20 take_113; r81.20 take_115; r81.20 take_118; r81.20 take_119; r81.20 take_120
  • Checkpoint Gaia Embedded: from r80.20.00 before r81.10.17; 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; from r80.20.00 before r82.00.10; r82.00.10; r82.00.10 build_998001559; r82.00.10 build_998001562; r82.00.10 build_998002110

References