{"cve":"CVE-2005-4840","nvd":{"published":"2005-12-31T05:00:00.000","modified":"2026-06-16T22:19:33.183","status":"Modified","description":"The Outlook Express Address Book control, when using Internet Explorer 6, allows remote attackers to cause a denial of service (NULL dereference and browser crash) by creating the OutlookExpress.AddressBook COM object, which is not intended for use within Internet Explorer.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-119"],"references":["http://browserfun.blogspot.com/2006/07/mobb-3-outlookexpressaddressbook_02.html","http://www.osvdb.org/26836","http://www.securityfocus.com/archive/1/391803","http://www.securityfocus.com/archive/1/470694/100/0/threaded","https://exchange.xforce.ibmcloud.com/vulnerabilities/34755"],"products":["microsoft:outlook_express_book_control"],"source":"nvd","synced_at":"2026-10-19T19:40:09.211843075+00:00"},"epss":{"cve":"CVE-2005-4840","score":0.11522,"percentile":0.96023,"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."]}