CVE-2020-21913

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.

CVSS v3.1 NVD

5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v2.0 NVD

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS

1.21% chance of exploitation in the next 30 days, 68th percentile

Published

2021-09-20

Updated

2026-10-14

Proof-of-concept exploits (1)

• https://unicode-org.atlassian.net/browse/ICU-20850

Security advisories

• unicode-org/icu/pull/886
• https://lists.debian.org/debian-lts-announce/2021/10/msg00008.html
• https://www.debian.org/security/2021/dsa-5014

References

• CVE Record
• NVD entry