CVE-2020-3994: VMware Cloud Foundation

High severity, CVSS 7.4. EPSS: 0.6% chance of exploitation in the next 30 days.

VMware vCenter Server (6.7 before 6.7u3, 6.6 before 6.5u3k) contains a session hijack vulnerability in the vCenter Server Appliance Management Interface update function due to a lack of certificate validation. A malicious actor with network positioning between vCenter Server and an update repository may be able to perform a session hijack when the vCenter Server Appliance Management Interface is used to download vCenter updates.

Affected products

• VMware Cloud Foundation: from 3.0, before 3.9 (fixed in 3.9)
• VMware vCenter Server: version 6.5 only; version 6.7 only

Published 2020-10-20. Last modified 2026-06-17.