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CVE-2020-3977

MEDIUM
6.5
CVSS Score
Published: September 22, 2020 at 01:45 PM UTC
Updated: June 17, 2026 at 03:19 AM UTC
1 product affected across 1 vendorHorizon DaaS

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Severity
MEDIUM6.5
Exploit prediction
EPSS 1.0%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Horizon DaaS· VMware
95%
v < 8.0.18.0.0 ≤ v ≤ 8.0.17.0.0
Affected range stops below 8.0.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://www.vmware.com/security/advisories/VMSA-2020-0021.html

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-306

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