High severity7.1NVD Advisory· Published Oct 16, 2020· Updated Jun 17, 2026
CVE-2020-3991
CVE-2020-3991
Description
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.
Affected products
2- VMware/Horizon Client for Windowsdescription
- Range: <5.5.0
Patches
Vulnerability mechanics
References
1- www.vmware.com/security/advisories/VMSA-2020-0022.htmlnvdPatchVendor Advisory
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