When using certain mbstring functions to convert multibyte encodings, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause function mbflfiltconvbig5wchar to read past the allocated buffer. This may lead to information disclosure or crash.
{ "cpes": [ "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*" ], "severity": "Medium" }