CVE-2026-79680: CWE-288 Authentication Bypass Using an Alternate Path or Channel in qt
Authentication bypass vulnerability in the password authentication mechanism of the Qt VNC Server module. An attacker using a specially modified VNC client that violates the RFB protocol can bypass Qt VNC Server's password authentication and gain unauthorized remote access to the shared application, compromising the confidentiality and integrity of the session.
CVE-2026-79680: CWE-288 Authentication Bypass Using an Alternate Path or Channel in qt
Description
Authentication bypass vulnerability in the password authentication mechanism of the Qt VNC Server module. An attacker using a specially modified VNC client that violates the RFB protocol can bypass Qt VNC Server's password authentication and gain unauthorized remote access to the shared application, compromising the confidentiality and integrity of the session.
CVSS v4.0
Score 4.5medium
Affected software
qt
qt
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Qt
- Date Reserved
- 2026-08-25T11:34:53.548Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ab50381f7a7c541063a6bde
Added to database: 09/24/2026, 11:03:29 UTC
Last updated: 09/24/2026, 11:03:29 UTC
Views: 1
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