CVE-2017-11362: PHP

Critical severity, CVSS 9.8. EPSS: 2.9% chance of exploitation in the next 30 days.

In PHP 7.x before 7.0.21 and 7.1.x before 7.1.7, ext/intl/msgformat/msgformat_parse.c does not restrict the locale length, which allows remote attackers to cause a denial of service (stack-based buffer overflow and application crash) or possibly have unspecified other impact within International Components for Unicode (ICU) for C/C++ via a long first argument to the msgfmt_parse_message function.

Affected products

• PHP PHP: version 7.0.0 only; version 7.0.1 only; version 7.0.2 only; version 7.0.3 only; version 7.0.4 only; version 7.0.5 only; …

Published 2017-07-17. Last modified 2026-06-17.