CVE-2020-7065highCWE-121

CVE-2020-7065: high-severity vulnerability in PHP

mb_strtolower (UTF-32LE): stack-buffer-overflow at php_unicode_tolower_full

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.4epss 4.9%
In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Affected products
PHP Group · PHP
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