CVE-2020-3977: VMware Horizon DaaS

Medium severity, CVSS 6.5. EPSS: 1% chance of exploitation in the next 30 days.

VMware Horizon DaaS (7.x and 8.x before 8.0.1 Update 1) contains a broken authentication vulnerability due to a flaw in the way it handled the first factor authentication. Successful exploitation of this issue may allow an attacker to bypass two-factor authentication process. In order to exploit this issue, an attacker must have a legitimate account on Horizon DaaS.

Affected products

• VMware Horizon DaaS: from 8.0.0, up to and including 8.0.1; version 7.0.0 only

Published 2020-09-22. Last modified 2026-06-17.