A AegiFlow
CRITICALCVSS 9.8

CVE-2016-5771

CVE-2016-5771 updated by NVD

Modified
2026-09-20
Sources
nvd

Summary

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.

Affected packages

EcosystemPackageAffected versionsFixed versions
PHPphp[object Object], [object Object], [object Object]

References

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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