CVE-2020-21913: Debian Linux

Medium severity, CVSS 5.5. EPSS: 1.2% chance of exploitation in the next 30 days.

International Components for Unicode (ICU-20850) v66.1 was discovered to contain a use after free bug in the pkg_createWithAssemblyCode function in the file tools/pkgdata/pkgdata.cpp.

Affected products

• Debian Debian Linux: version 9.0 only; version 10.0 only
• Unicode International Components For Unicode: before 66.1 (fixed in 66.1)

Published 2021-09-20. Last modified 2026-06-17.