CVE-2021-32563: Xfce Thunar

Critical severity, CVSS 9.8. EPSS: 3% chance of exploitation in the next 30 days.

An issue was discovered in Thunar before 4.16.7 and 4.17.x before 4.17.2. When called with a regular file as a command-line argument, it delegates to a different program (based on the file type) without user confirmation. This could be used to achieve code execution.

Affected products

• Xfce Thunar: before 4.16.7 (fixed in 4.16.7); from 4.17.0, before 4.17.2 (fixed in 4.17.2)

Published 2021-05-11. Last modified 2026-06-17.