{"cve":"CVE-2009-0647","nvd":{"published":"2009-02-19T16:30:00.563","modified":"2026-06-16T23:05:29.387","status":"Modified","description":"msnmsgr.exe in Windows Live Messenger (WLM) 2009 build 14.0.8064.206, and other 14.0.8064.x builds, allows remote attackers to cause a denial of service (application crash) via a modified header in a packet, as possibly demonstrated by a UTF-8.0 value of the charset field in the Content-Type header line.  NOTE: this has been reported as a format string vulnerability by some sources, but the provenance of that information is unknown.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://secunia.com/advisories/33985","http://www.securityfocus.com/archive/1/501043/100/0/threaded","http://www.securityfocus.com/bid/33825","http://www.vupen.com/english/advisories/2009/0466","https://exchange.xforce.ibmcloud.com/vulnerabilities/48810"],"products":["microsoft:windows_live_messenger"],"source":"nvd","synced_at":"2026-10-19T19:53:23.791937413+00:00"},"epss":{"cve":"CVE-2009-0647","score":0.17365,"percentile":0.97117,"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."]}