CVE-2020-21913
CVE-2020-21913 is a medium-severity vulnerability in Unicode International Components For Unicode with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (63rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-416
- Affected product: Unicode International Components For Unicode
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2020-21913?
- CVE-2020-21913 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2020-21913 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-21913?
- CVE-2020-21913 primarily affects Unicode International Components For Unicode. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-21913?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-21913 published?
- CVE-2020-21913 was published on 2021-09-20 and last updated on 2026-06-17.
References
- https://github.com/unicode-org/icu/pull/886
- https://lists.debian.org/debian-lts-announce/2021/10/msg00008.html
- https://unicode-org.atlassian.net/browse/ICU-20850
- https://www.debian.org/security/2021/dsa-5014
Affected products (3)
- cpe:2.3:a:unicode:international_components_for_unicode:*:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
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