CVE-2016-5771

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

spl_array.c in the SPL extension in PHP before 5.5.37 and 5.6.x before 5.6.23 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and application crash) via crafted serialized data.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
n/an/an/a

References

Timeline

Published
Aug 7, 2016
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2016

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CVE-2016-5771: Critical severity, CVSS 9.8 | Vulnix