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.
Does this matter?
Lower severity and a low EPSS score (1.21%). Track it; it rarely justifies an emergency change on its own.
Description
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 1.21% probability · 68th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- unicode/international components for unicode · debian/debian linux
- Source
- cve@mitre.org
EPSS 1.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/unicode-org/icu/pull/886Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/10/msg00008.htmlMailing List, Third Party Advisory
- https://unicode-org.atlassian.net/browse/ICU-20850Exploit, Vendor Advisory
- https://www.debian.org/security/2021/dsa-5014Third Party Advisory
- https://github.com/unicode-org/icu/pull/886Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/10/msg00008.htmlMailing List, Third Party Advisory
- https://unicode-org.atlassian.net/browse/ICU-20850Exploit, Vendor Advisory
- https://www.debian.org/security/2021/dsa-5014Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.