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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.00%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.4 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 5.00% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-295
- Source
- cve@checkpoint.com
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.