{"cve":"CVE-2004-2137","nvd":{"published":"2004-12-31T05:00:00.000","modified":"2026-06-16T22:09:04.967","status":"Modified","description":"Outlook Express 6.0, when sending multipart e-mail messages using the \"Break apart messages larger than\" setting, leaks the BCC recipients of the message to the addresses listed in the To and CC fields, which may allow remote attackers to obtain sensitive information.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://secunia.com/advisories/12376","http://securitytracker.com/id?1011067","http://support.microsoft.com/kb/843555","http://www.networksecurity.fi/advisories/outlook-bcc.html","http://www.osvdb.org/9167"],"products":["microsoft:outlook_express"],"source":"nvd","synced_at":"2026-10-19T19:37:11.487553034+00:00"},"epss":{"cve":"CVE-2004-2137","score":0.26142,"percentile":0.97993,"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."]}