CVE-2016-7412: PHP

High severity, CVSS 8.1. EPSS: 8.9% chance of exploitation in the next 30 days.

ext/mysqlnd/mysqlnd_wireprotocol.c in PHP before 5.6.26 and 7.x before 7.0.11 does not verify that a BIT field has the UNSIGNED_FLAG flag, which allows remote MySQL servers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted field metadata.

Affected products

• PHP PHP: up to and including 5.6.25; version 7.0.0 only; version 7.0.1 only; version 7.0.2 only; version 7.0.3 only; version 7.0.4 only; …

Published 2016-09-17. Last modified 2026-06-17.