CVE-2021-22045

Name: CVE-2021-22045
Creator: NVD / NIST
Published: 2022-01-04T22:15:07.467+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 4.68%

Last modified Jun 17, 2026

CVE-2021-22045 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 4.68% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

4.68%

90.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Vmware	Cloud Foundation	>= 3.0, <= 3.10.2.2
Vmware	Cloud Foundation	>= 4.0, <= 4.3.1
Vmware	Workstation	>= 16.0.0, < 16.2.0
Vmware	Fusion	>= 12.0.0, < 12.2.0
Vmware	Esxi	6.5
Vmware	Esxi	6.7
Vmware	Esxi	7.0

References

http://packetstormsecurity.com/files/165440/VMware-Security-Advisory-2022-0001.htmlThird Party Advisory, VDB Entry
https://www.vmware.com/security/advisories/VMSA-2022-0001.htmlVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-003/Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/165440/VMware-Security-Advisory-2022-0001.htmlThird Party Advisory, VDB Entry
https://www.vmware.com/security/advisories/VMSA-2022-0001.htmlVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-003/Third Party Advisory, VDB Entry

Timeline

Published: Jan 4, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22045?

How severe is CVE-2021-22045?

CVE-2021-22045 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 4.68% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22045?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-22045?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST