CVE-2020-3998: VMware Horizon Client

Medium severity, CVSS 6.5. EPSS: 1.3% chance of exploitation in the next 30 days.

VMware Horizon Client for Windows (5.x prior to 5.5.0) contains an information disclosure vulnerability. A malicious attacker with local privileges on the machine where Horizon Client for Windows is installed may be able to retrieve hashed credentials if the client crashes.

Affected products

• VMware Horizon Client: from 5.0.0, before 5.5.0 (fixed in 5.5.0)

Published 2020-10-23. Last modified 2026-06-17.