CVE-2017-5340: Netapp Clustered Data Ontap

Critical severity, CVSS 9.8. EPSS: 16.7% chance of exploitation in the next 30 days.

Zend/zend_hash.c in PHP before 7.0.15 and 7.1.x before 7.1.1 mishandles certain cases that require large array allocations, which allows remote attackers to execute arbitrary code or cause a denial of service (integer overflow, uninitialized memory access, and use of arbitrary destructor function pointers) via crafted serialized data.

Affected products

• Netapp Clustered Data Ontap: affected versions not specified
• PHP PHP: from 7.0.0, before 7.0.15 (fixed in 7.0.15); from 7.1.0, before 7.1.1 (fixed in 7.1.1)

Published 2017-01-11. Last modified 2026-06-17.