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).
CVE-2021-38593
CVSS base score
7.5 (v3.1)
Severity
HIGH
Attack vector
Network
Weakness
CWE-787
Last modified
November 2, 2026
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
qt qt
fedoraproject fedora
References
- bugs.chromium.org Issue Tracking, Patch, Third Party Advisory
- github.com Third Party Advisory
- github.com Patch, Third Party Advisory
- github.com Patch, Third Party Advisory
- github.com Patch, Third Party Advisory
- lists.fedoraproject.org
- lists.fedoraproject.org
- security.gentoo.org
- wiki.qt.io Issue Tracking, Release Notes, Vendor Advisory
- www.qt.io Release Notes