CVE-2007-0242: Qt

Medium severity, CVSS 4.3. EPSS: 2.1% chance of exploitation in the next 30 days.

The UTF-8 decoder in codecs/qutfcodec.cpp in Qt 3.3.8 and 4.2.3 does not reject long UTF-8 sequences as required by the standard, which allows remote attackers to conduct cross-site scripting (XSS) and directory traversal attacks via long sequences that decode to dangerous metacharacters.

Affected products

• Qt Qt: version 3.3.8 only; version 4.2.3 only

Published 2007-04-03. Last modified 2026-06-16.