{"cve":"CVE-2015-0231","nvd":{"published":"2015-01-27T20:03:41.097","modified":"2026-06-17T00:19:46.633","status":"Modified","description":"Use-after-free vulnerability in the process_nested_data function in ext/standard/var_unserializer.re in PHP before 5.4.37, 5.5.x before 5.5.21, and 5.6.x before 5.6.5 allows remote attackers to execute arbitrary code via a crafted unserialize call that leverages improper handling of duplicate numerical keys within the serialized properties of an object.  NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-8142.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://advisories.mageia.org/MGASA-2015-0040.html","http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html","http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00029.html","http://lists.opensuse.org/opensuse-updates/2015-02/msg00079.html","http://marc.info/?l=bugtraq&m=143403519711434&w=2"],"products":["php:php"],"source":"nvd","synced_at":"2026-10-19T20:35:35.528235705+00:00"},"epss":{"cve":"CVE-2015-0231","score":0.44446,"percentile":0.98764,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}