CVE-2026-50752

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.

CVSS v3 7.4 HIGH

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://support.checkpoint.com/results/sk/sk185035

Configurations

No configuration.

History

23 Jul 2026, 07:10

Type	Values Removed	Values Added
Summary		(es) Una debilidad en la lógica de validación de certificados del intercambio de claves IKEv1 obsoleto podría permitir a un atacante no autenticado posicionado como un man-in-the-middle eludir la validación de certificados en conexiones VPN de sitio a sitio que utilizan autenticación basada en certificados. Una explotación exitosa podría permitir la interceptación o modificación del tráfico que atraviesa el túnel VPN.

08 Jun 2026, 12:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-08 12:16

Updated : 2026-07-23 07:10

NVD link : CVE-2026-50752

Mitre link : CVE-2026-50752

CVE.ORG link : CVE-2026-50752

JSON object : View

Products Affected

No product.

CWE

CWE-295

Improper Certificate Validation

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