Is CVE-2021-22045 being actively exploited?

CVE-2021-22045 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2021-22045?

CVE-2021-22045 has a CVSS 3.1 base score of 7.8 (HIGH).

CVE-2021-22045

HIGH · CVSS 7.8EPSS 4.7%EU EUVD

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.

Key facts

CVSS score: 7.8 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-787
EPSS score: 4.7% (92th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2021-9213)
Published: January 4, 2022
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2021-9213 in the EU Vulnerability Database. Last updated in EUVD on August 3, 2024.

View on the EU Vulnerability Database

Affected products

apple / mac os x
vmware / cloud foundation
vmware / esxi
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and 167 more…

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

VMware ESXi 7.0 Update 3d - VMware Inc. - Common Criteria CCEVS-VR-VID-11249-2022 - archived

References

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

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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