CVE-2021-38593: Fedoraproject Fedora

High severity, CVSS 7.5. EPSS: 3% chance of exploitation in the next 30 days.

Qt 5.x before 5.15.6 and 6.x through 6.1.2 has an out-of-bounds write in QOutlineMapper::convertPath (called from QRasterPaintEngine::fill and QPaintEngineEx::stroke).

Affected products

• Fedoraproject Fedora: version 35 only; version 36 only
• Qt Qt: from 5.0.0, before 5.15.6 (fixed in 5.15.6); from 6.0.0, up to and including 6.1.2

Published 2021-08-12. Last modified 2026-06-17.