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CVE-2021-44554

MEDIUM
5.3
CVSS Score
Published: December 20, 2021 at 08:31 AM UTC
Updated: June 17, 2026 at 04:12 AM UTC
1 product affected across 1 vendorThinfinity Virtualui

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Severity
MEDIUM5.3
Exploit prediction
EPSS 1%

Description

Thinfinity VirtualUI before 3.0 allows a malicious actor to enumerate users registered in the OS (Windows) through the /changePassword URI. By accessing the vector, an attacker can determine if a username exists thanks to the message returned; it can be presented in different languages according to the configuration of VirtualUI. Common users are administrator, admin, guest and krgtbt.

Affected

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

Thinfinity Virtualui· Cybelesoft
95%
v < 3.0
Affected range stops below 3.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://github.com/cybelesoft/virtualui/issues/1

CVSS

5.3MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-203

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