Out-of-bounds Read in VMware Horizon Client

CVE-2020-3986

VMware Workstation (15.x) and Horizon Client for Windows (5.x before 5.4.4) contain an out-of-bounds read vulnerability in Cortado ThinPrint component (EMF Parser). A malicious actor with normal access to a virtual machine may be able to exploit these issues to create a partial denial-of-service condition or to leak memory from TPView process running on the system where Workstation or Horizon Client for Windows is installed.

Vulnerability class: Buffer Overflow

EPSS: 0.003 (22.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-3986?
CVE-2020-3986 is a medium-severity vulnerability in VMware Horizon Client, classified under Out-of-bounds Read. CVSS score: 6.1/10. Published 2020-09-16.
How severe is CVE-2020-3986?
Medium severity. CVSS v3 base score is 6.1 out of 10.