CVE-2026-50752

HighCVSS 7.4/10Last modified Jul 23, 2026

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.

Metrics

CVSS 3.1 7.4/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-295

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
checkpoint	Quantum Security Gateway	R82.10 with Jumbo Hotfix Take 19 or below; R82 with Jumbo Hotfix Take 103 or below; R81.20 with Jumbo Hotfix Take 141 or below; R81.10, R81, and R80.40
checkpoint	Spark Firewalls	R80.20.X, R81.10.X, and R82.00.X

References

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

Timeline

Published: Jun 8, 2026
Last modified: Jul 23, 2026
NVD status: Awaiting Analysis

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