CVE-2016-9138: PHP

Critical severity, CVSS 9.8. EPSS: 3.8% chance of exploitation in the next 30 days.

PHP through 5.6.27 and 7.x through 7.0.12 mishandles property modification during __wakeup processing, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted serialized data, as demonstrated by Exception::__toString with DateInterval::__wakeup.

Affected products

• PHP PHP: up to and including 5.6.27; 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 2017-01-04. Last modified 2026-06-17.