AUGUST 4, 2026
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Case File

CVE-2021-44554

MEDIUM · CVSS 5.3 EPSS 1.03% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-12-20 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-44554
Severity
MEDIUM
CVSS
5.3
EPSS
1.03%
Windows

Original NVD 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.