cvedb.io
CVE-2017-5340
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2017-01-11T06:59:00.160 · Last modified 2026-06-17T01:20:17.873

Summary

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

php — php

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.