Qt

Platform

Threat entity extracted from intelligence sources

Frequency

4

occurrences

First Seen

December 11, 2025

Last Seen

February 18, 2026

Qt is a cross-platform application development framework used to build GUI and non-GUI software across desktop and embedded platforms.

Overview

Recent Events

Relationships

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Related Clusters (2)

Multiple CVEs Identified in Qt HTTP2 Implementation

Feb 18·2 sources

Critical Qt Vulnerability in Ubuntu 22.04 LTS and 20.04 LTS

Dec 11·2 sources

Related Articles (4)

CVE-2023-51714 An issue was discovered in the HTTP2 implementation in Qt before 5.15.17 6.x before 6.2.11 6.3.x through 6.5.x before 6.5.4 and 6.6.x before 6.6.2. network/access/http2/hpacktable.cpp has an incorrect HPack integer overflow check.

Api.Msrc.Microsoft·Feb 18

CVE-2024-39936 An issue was discovered in HTTP2 in Qt before 5.15.18 6.x before 6.2.13 6.3.x through 6.5.x before 6.5.7 and 6.6.x through 6.7.x before 6.7.3. Code to make security-relevant decisions about an established connection may execute too early because the encrypted() signal has not yet been emitted and processed..

Api.Msrc.Microsoft·Feb 18

Ubuntu 22.04 LTS: Qt Critical Denial of Service Risk 2025:7923

Linuxsecurity·Dec 11

USN-7923-1: Qt vulnerability

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Zero-day Exploit Denial of Service Ubuntu