CVE-2017-12934

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CVSS 3.0

7.5 high

EPSS

4%p89

Published

Aug 18, 2017 (Aug 18, 2017)

Modified

Jun 17, 2026

Description

ext/standard/var_unserializer.re in PHP 7.0.x before 7.0.21 and 7.1.x before 7.1.7 is prone to a heap use after free while unserializing untrusted data, related to the zval_get_type function in Zend/zend_types.h. Exploitation of this issue can have an unspecified impact on the integrity of PHP.

Vendors: php
Products: php
Weakness: CWE-416
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (3.6%)

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