Buffer overflow in Qt

CVE-2026-107590

An out-of-bounds write vulnerability in the Qt QTextCodec iconv-based encoding of the Qt 5 Compatibility APIs module (Qt Core in Qt 5 and earlier) impacts Qt. Under certain conditions, encoding text with QTextCodec may write outside an internal buffer. This can cause the application to crash and may affect data integrity.

Published · last modified .

EPSS exploit prediction

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Affected products

Weakness classification (CWE)

References