{"cve":"CVE-2014-8147","nvd":{"published":"2015-05-25T22:59:01.927","modified":"2026-06-17T00:16:22.690","status":"Modified","description":"The resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional Algorithm implementation in ICU4C in International Components for Unicode (ICU) before 55.1 uses an integer data type that is inconsistent with a header file, which allows remote attackers to cause a denial of service (incorrect malloc followed by invalid free) or possibly execute arbitrary code via crafted text.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-189"],"references":["http://bugs.icu-project.org/trac/changeset/37080","http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.html","http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html","http://openwall.com/lists/oss-security/2015/05/05/6","http://seclists.org/fulldisclosure/2015/May/14"],"products":["apple:mac_os_x","apple:watchos","icu-project:international_components_for_unicode"],"source":"nvd","synced_at":"2026-10-19T20:36:40.444340523+00:00"},"epss":{"cve":"CVE-2014-8147","score":0.23611,"percentile":0.97808,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}