{"cve":"CVE-2014-8142","nvd":{"published":"2014-12-20T11:59:00.057","modified":"2026-06-17T00:16:21.960","status":"Modified","description":"Use-after-free vulnerability in the process_nested_data function in ext/standard/var_unserializer.re in PHP before 5.4.36, 5.5.x before 5.5.20, and 5.6.x before 5.6.4 allows remote attackers to execute arbitrary code via a crafted unserialize call that leverages improper handling of duplicate keys within the serialized properties of an object, a different vulnerability than CVE-2004-1019.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=630f9c33c23639de85c3fd306b209b538b73b4c9","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","http://marc.info/?l=bugtraq&m=143748090628601&w=2"],"products":["php:php"],"source":"nvd","synced_at":"2026-10-19T20:34:45.729216538+00:00"},"epss":{"cve":"CVE-2014-8142","score":0.55065,"percentile":0.99027,"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."]}