CVE-2022-31627: high-severity vulnerability in PHP
Heap buffer overflow in finfo_buffer
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.7epss 2.1%
In PHP versions 8.1.x below 8.1.8, when fileinfo functions, such as finfo_buffer, due to incorrect patch applied to the third party code from libmagic, incorrect function may be used to free allocated memory, which may lead to heap corruption.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Affected products
PHP Group · PHPRelated CVEs — PHP
In the same product, most dangerous first.
CVE-2026-109619CRITICALRCE via stale global stateEPSS 100.0%KEVCVE-2026-109618CRITICALRCE via OOM corruptionEPSS 100.0%KEVCVE-2024-4577CRITICALArgument Injection in PHP-CGIEPSS 100.0%KEVCVE-2022-31626HIGHmysqlnd/pdo password buffer overflowEPSS 58.1%CVE-2022-31629MEDIUM$_COOKIE names string replacement (. -> _): cookie integrity vulnerabilitiesEPSS 49.6%CVE-2024-2756MEDIUM__Host-/__Secure- cookie bypass due to partial CVE-2022-31629 fixEPSS 38.1%