Thinfinity VirtualUI before 3.0 allows a malicious actor to enumerate users registered in…
Priority LOW 26CWE-203Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-203.
Summary
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.
Why it matters now
EPSS 0.01063 64th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cybelesoft:thinfinity_virtualui:*:*:*:*:*:*:*:* | before 3.0 | Vulnerable | Cybelesoft |
- cpe:2.3:a:cybelesoft:thinfinity_virtualui:*:*:*:*:*:*:*:* Versions before 3.0 Vulnerable ·Cybelesoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-44554
- 2026-10-03 Alias added: GHSA-q6gc-hcqv-7cmx
References
More Cybelesoft Thinfinity Virtualui vulnerabilities
- TI-2021-20425 Thinfinity VirtualUI before 3.0 has functionality in /lab.html reachable by default that… CVSS 3.1CRITICAL 9.8
- TI-2021-21188 Thinfinity VirtualUI 2.1.28.0, 2.1.32.1 and 2.5.26.2, fixed in version 3.0 is affected by… CVSS 3.1HIGH 7.5
- TI-2021-20292 In Cibele Thinfinity VirtualUI before 3.0, /changePassword returns different responses… CVSS 3.1MEDIUM 5.3
- TI-2019-12319 Cybele Thinfinity VirtualUI 2.5.17.2 allows ../ path traversal that can be used for data… CVSS 3.1MEDIUM 6.5
- TI-2019-12320 Cybele Thinfinity VirtualUI 2.5.17.2 allows HTTP response splitting via the mimetype… CVSS 3.1MEDIUM 6.1
Sources
- CVE-2021-44554 · CVE Program
- CVE-2021-44554 · NVD
- FIRST EPSS
- GHSA-q6gc-hcqv-7cmx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences