What’s Vulnerable › Vulnerabilities
CVE-2026-50752: Certificate Validation Bypass in VPN Site-to-Site Connections Using IKEv1
- Severity: high (CVSS 7.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 5.0% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-06-08 · updated 2026-07-23
- Weakness: CWE-295
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.
Affected products
- Check Point Quantum Security Gateway: through R82.10 with Jumbo Hotfix Take 19; through R82 with Jumbo Hotfix Take 103; through R81.20 with Jumbo Hotfix Take 141; R81.10, R81, and R80.40
- checkpoint Spark Firewalls: R80.20.X, R81.10.X, and R82.00.X
References
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