Vulnerability Details CVE-2016-4541
The grapheme_strpos function in ext/intl/grapheme/grapheme_string.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a negative offset.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.036
EPSS Ranking 87.2%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 7.5