CVE-2021-21988

low-risk
Published 2021-05-24

VMware Workstation (16.x prior to 16.1.2) and Horizon Client for Windows (5.x prior to 5.5.2) contain out-of-bounds read vulnerability in the Cortado ThinPrint component (JPEG2000 Parser). A malicious actor with access to a virtual machine or remote desktop may be able to exploit these issues leading to information disclosure from the TPView process running on the system where Workstation or Horizon Client for Windows is installed.

Do I need to act?

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0.05% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10 Medium
LOCAL / LOW complexity

Affected Products (2)

Affected Vendors

Vmware

References (4)

Patch https://www.vmware.com/security/advisories/VMSA-2021-0009.html
Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-21-609/
Patch https://www.vmware.com/security/advisories/VMSA-2021-0009.html
Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-21-609/
28
/ 100
low-risk
Severity 21/34 · High
Exploitability 0/34 · Minimal
Exposure 7/34 · Low