CVEvulnerability
CVE-2026-105946
5.3 MEDIUM
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-10-27
- Last modified
- 2026-10-27
- Assigner
- a59d8014-47c4-4630-ab43-e1b13cbe58e3
- CVSS 4.0 (a59d8014-47c4-4630-ab43-e1b13cbe58e3)
- 5.3 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Weaknesses
- CWE-125
Description
Out-of-bounds read in the QAuthenticator NTLM authentication handling in the Qt Network module in Qt Group Qt allows remote attackers to obtain sensitive information (heap memory contents) or cause a denial of service (application crash) via a crafted NTLM challenge sent by a malicious server or proxy, when an application using QNetworkAccessManager or QTcpSocket authenticates with NTLM.
Related
Weakness · CWE (1)
- CWE-125 Out-of-bounds Read weakness
References
- https://codereview.qt-project.org/c/qt/qtbase/+/744448 codereview.qt-project.org
- https://codereview.qt-project.org/c/qt/qtbase/+/745457 codereview.qt-project.org
- https://codereview.qt-project.org/c/qt/qtbase/+/745464 codereview.qt-project.org
- https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-105946: wiki.qt.io