CVE-2015-6836: PHP

High severity, CVSS 7.3. EPSS: 10.3% chance of exploitation in the next 30 days.

The SoapClient __call method in ext/soap/soap.c in PHP before 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13 does not properly manage headers, which allows remote attackers to execute arbitrary code via crafted serialized data that triggers a "type confusion" in the serialize_function_call function.

Affected products

• PHP PHP: up to and including 5.4.44; version 5.5.0 only; version 5.5.1 only; version 5.5.2 only; version 5.5.3 only; version 5.5.4 only; …

Published 2016-01-19. Last modified 2026-06-17.