CVE-2026-79680

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

• https://codereview.qt-project.org/c/qt/tqtc-qtvncserver/+/759160 a59d8014-47c4-4630-ab43-e1b13cbe58e3
• https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-79680: a59d8014-47c4-4630-ab43-e1b13cbe58e3

The full cvelistV5 record. Download as CVE-2026-79680.json.

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                "id": "CVE-2026-79680",
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                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2026-09-24T12:17:35.115651Z",
                "version": "2.0.3"
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              "value": "<p>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.</p>"
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            "baseScore": 4.5,
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        "discovery": "INTERNAL"
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      "title": "Authentication bypass vulnerability in the password authentication mechanism of the Qt VNC Server module",
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