CVE-2021-22045

high-risk

Published 2022-01-04

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.

Do I need to act?

2.1% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.8/10 High

LOCAL / HIGH complexity

Affected Products (20)

Cloud Foundation

Workstation

Fusion

Esxi

Affected Vendors

Vmware

References (6)

Third Party Advisory http://packetstormsecurity.com/files/165440/VMware-Security-Advisory-2022-0001.h...

Vendor Advisory https://www.vmware.com/security/advisories/VMSA-2022-0001.html

Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-22-003/

Third Party Advisory http://packetstormsecurity.com/files/165440/VMware-Security-Advisory-2022-0001.h...

Vendor Advisory https://www.vmware.com/security/advisories/VMSA-2022-0001.html

Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-22-003/

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high-risk

Severity 20/34 · Moderate

Exploitability 5/34 · Minimal

Exposure 33/34 · Critical