🔐 CVE Alert

CVE-2026-107457

UNKNOWN 0.0

Memory corruption vulnerability in QMqttClient impacts Qt MQTT

CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th

A memory corruption vulnerability in the QMqttClient class of the Qt MQTT module. Under certain MQTT 5 connection settings between client and server, QMqttClient may corrupt memory, which can cause the application to crash.

CWE CWE-787 CWE-129
Vendor qt
Product qt
Published Nov 2, 2026
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Affected Versions

qt / Qt
5.12.0 ≤ 6.8.8 6.9.0 ≤ 6.11.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗
wiki.qt.io: https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-107457: codereview.qt-project.org: https://codereview.qt-project.org/c/qt/qtmqtt/+/762286