CVE-2021-22045: VMware Cloud Foundation

High severity, CVSS 7.8. EPSS: 4.7% chance of exploitation in the next 30 days.

VMware ESXi (7.0, 6.7 before ESXi670-202111101-SG and 6.5 before ESXi650-202110101-SG), VMware Workstation (16.2.0) and VMware Fusion (12.2.0) contains a heap-overflow vulnerability in CD-ROM device emulation. A malicious actor with access to a virtual machine with CD-ROM device emulation may be able to exploit this vulnerability in conjunction with other issues to execute code on the hypervisor from a virtual machine.

Affected products

• VMware Cloud Foundation: from 3.0, up to and including 3.10.2.2; from 4.0, up to and including 4.3.1
• VMware ESXi: version 6.5 only; version 6.7 only; version 7.0 only
• VMware Fusion: from 12.0.0, before 12.2.0 (fixed in 12.2.0)
• VMware Workstation: from 16.0.0, before 16.2.0 (fixed in 16.2.0)

Published 2022-01-04. Last modified 2026-06-17.