CVE-2020-3977

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-09-22 · updated 2026-06-17
Weakness: CWE-306

Description

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 through 8.0.1; 7.0.0
VMware Horizon DaaS: VMware Horizon DaaS (7.x and 8.x before 8.0.1 Update 1)

References

https://www.vmware.com/security/advisories/VMSA-2020-0021.html
https://www.vmware.com/security/advisories/VMSA-2020-0021.html

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