A weakness in the certificate validation logic of the deprecated IKEv1 key exchange may allow an unauthenticated attacker positioned as a man-in-the-middle to bypass certificate validation in VPN site-to-site connections that use certificate-based authentication. Successful exploitation could allow interception or modification of traffic traversing the VPN tunnel.
History

Tue, 09 Jun 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Checkpoint
Checkpoint quantum Security Gateway
Checkpoint spark Firewalls
Vendors & Products Checkpoint
Checkpoint quantum Security Gateway
Checkpoint spark Firewalls

Mon, 08 Jun 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 08 Jun 2026 11:45:00 +0000

Type Values Removed Values Added
Description A weakness in the certificate validation logic of the deprecated IKEv1 key exchange may allow an unauthenticated attacker positioned as a man-in-the-middle to bypass certificate validation in VPN site-to-site connections that use certificate-based authentication. Successful exploitation could allow interception or modification of traffic traversing the VPN tunnel.
Title Certificate Validation Bypass in VPN Site-to-Site Connections Using IKEv1
Weaknesses CWE-295
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: checkpoint

Published: 2026-06-08T11:00:38.563Z

Updated: 2026-06-09T03:55:37.123Z

Reserved: 2026-06-07T09:42:08.252Z

Link: CVE-2026-50752

cve-icon Vulnrichment

Updated: 2026-06-08T12:55:47.994Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-06-08T12:16:32.503

Modified: 2026-06-08T14:57:49.490

Link: CVE-2026-50752

cve-icon Redhat

No data.