CVE-2021-21989

MEDIUM

VMware Workstation 16.0.0-16.1.1 and Horizon Client 5.0.0-5.5.1 - Out-of-bounds Read in Cortado ThinPrint TTC Parser

Title source: llm
STIX 2.1

Description

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 (TTC 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.

References (2)

Core 2
Core References
Patch, Vendor Advisory x_refsource_misc
https://www.vmware.com/security/advisories/VMSA-2021-0009.html
Third Party Advisory, VDB Entry x_refsource_misc
https://www.zerodayinitiative.com/advisories/ZDI-21-610/

Scores

CVSS v3 6.5
EPSS 0.0045
EPSS Percentile 36.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Details

CWE
CWE-125
Status published
Products (2)
vmware/horizon_client 5.0.0 - 5.5.2
vmware/workstation 16.0.0 - 16.1.2
Published May 24, 2021
Tracked Since Feb 18, 2026