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TI-2020-03487 Aliases CVE-2020-3991GHSA-6rc8-hqq9-gfph

VMware Horizon Client for Windows (5.x before 5.5.0) contains a denial-of-service…

Priority LOW 31Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

VMware Horizon Client for Windows (5.x before 5.5.0) contains a denial-of-service vulnerability due to a file system access control issue during install time. Successful exploitation of this issue may allow an attacker to overwrite certain admin privileged files through a symbolic link attack at install time. This will result into a denial-of-service condition on the machine where Horizon Client for Windows is installed.

Why it matters now

EPSS 0.00343 27th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—VMware Horizon Client for WindowsVMware Horizon Client for Windows (5.x before 5.5.0)—No fix listedCNA
  • VMware Horizon Client for Windows Vendor— Affected VMware Horizon Client for Windows (5.x before 5.5.0) Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:vmware:horizon_client:*:*:*:*:*:*:*:*5.0.0 to before 5.5.0VulnerableVMware
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:vmware:horizon_client:*:*:*:*:*:*:*:* Versions 5.0.0 to before 5.5.0 Vulnerable ·VMware
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-3991
  2. 2026-10-03 Alias added: GHSA-6rc8-hqq9-gfph

References

Patch 1

  • TI-2020-03448 Improper privilege management in VMware Fusion, VMware Remote Console for Mac and Horizon… KEVCVSS 3.1HIGH 7.8
  • TI-2020-03472 VMware Fusion (11.x before 11.5.5), VMware Remote Console for Mac (11.x and prior before… CVSS 3.1HIGH 7.8
  • TI-2020-03459 Incorrect permission assignment in VMware Horizon Client for Windows CVSS 3.1HIGH 7.8
  • TI-2019-03948 Incorrect permission assignment in VMware Horizon Client for Windows CVSS 3.1HIGH 7.8
  • TI-2018-05086 VMware Horizon Client for Linux (4.x before 4.8.0 and prior) contains a local privilege… CVSS 3.0HIGH 7.8
  • TI-2018-05092 Out-of-bounds read in VMware Horizon 6, Horizon 7, and Horizon Client CVSS 3.0MEDIUM 6.5
See all 24 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences