CVE-2026-79680

Published: Sep 24, 2026Updated: Sep 24, 2026 Sources: CVE List NVDCWE-288

N/ACVSS

NVD MITRE

EPSS Score

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.

No summary for this CVE yet.

Weaknesses

CWE-288

Affected Products

commercial

qtLibraryLibrary

OSS Libraries / generic-library

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://codereview.qt-project.org/c/qt/tqtc-qtvncserver/+/759160

codereview.qt-project.org

https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-79680:

wiki.qt.io

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