CVE-2021-22045
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.68%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 4.68% probability · 92th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- vmware/cloud foundation · vmware/workstation · vmware/fusion · vmware/esxi
- Source
- security@vmware.com
EPSS 4.7% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.