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Critical Qt Vulnerability in Ubuntu 22.04 LTS and 20.04 LTS

Critical Qt Vulnerability in Ubuntu 22.04 LTS and 20.04 LTS

First seen 11 Dec 2025, 13:51 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

A critical vulnerability in Qt affects Ubuntu 22.04 LTS and 20.04 LTS, allowing attackers to crash the system or execute arbitrary code by tricking users into opening specially crafted files. The issue arises from improper handling of memory operations within the Qt libraries. Users and automated systems are at risk if they interact with malicious files.

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