{"cve":"CVE-2009-1271","nvd":{"published":"2009-04-08T18:30:00.187","modified":"2026-06-16T23:06:54.820","status":"Modified","description":"The JSON_parser function (ext/json/JSON_parser.c) in PHP 5.2.x before 5.2.9 allows remote attackers to cause a denial of service (segmentation fault) via a malformed string to the json_decode API function.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://cvs.php.net/viewvc.cgi/php-src/ext/json/JSON_parser.c?r1=1.1.2.14&r2=1.1.2.15","http://lists.apple.com/archives/security-announce/2009/Sep/msg00004.html","http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html","http://secunia.com/advisories/34770","http://secunia.com/advisories/34830"],"products":["php:php"],"source":"nvd","synced_at":"2026-10-19T19:54:07.895733559+00:00"},"epss":{"cve":"CVE-2009-1271","score":0.02396,"percentile":0.84006,"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."]}