{"cve":"CVE-2009-1531","nvd":{"published":"2009-06-10T18:30:00.517","modified":"2026-06-16T23:07:28.013","status":"Modified","description":"Microsoft Internet Explorer 7 for Windows XP SP2 and SP3; 7 for Server 2003 SP2; 7 for Vista Gold, SP1, and SP2; and 7 for Server 2008 SP2 allows remote attackers to execute arbitrary code via frequent calls to the getElementsByTagName function combined with the creation of an object during reordering of elements, followed by an onreadystatechange event, which triggers an access of an object that (1) was not properly initialized or (2) is deleted, aka \"HTML Object Memory Corruption Vulnerability.\"","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-399"],"references":["http://osvdb.org/54950","http://www.securityfocus.com/archive/1/504216/100/0/threaded","http://www.securityfocus.com/bid/35234","http://www.securitytracker.com/id?1022350","http://www.us-cert.gov/cas/techalerts/TA09-160A.html"],"products":["microsoft:internet_explorer"],"source":"nvd","synced_at":"2026-10-19T19:54:07.895733559+00:00"},"epss":{"cve":"CVE-2009-1531","score":0.35074,"percentile":0.98436,"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."]}