CVE-2016-6293: Icu-Project International Components For Unicode

Critical severity, CVSS 9.8. EPSS: 5% chance of exploitation in the next 30 days.

The uloc_acceptLanguageFromHTTP function in common/uloc.cpp in International Components for Unicode (ICU) through 57.1 for C/C++ does not ensure that there is a '\0' character at the end of a certain temporary array, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a call with a long httpAcceptLanguage argument.

Affected products

• Icu-Project International Components For Unicode: up to and including 57.1

Published 2016-07-25. Last modified 2026-06-17.