{"id":"CVE-2009-0647","aliases":["EUVD-2009-0650","GHSA-vgwx-7mjc-5w5g"],"status":"published","title":"msnmsgr.exe in Windows Live Messenger (WLM) 2009 build 14.0.8064.206, and other 14.0.8064.x...","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.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.17365,"percentile":0.97135,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2009-02-19T16:00:00Z","modified":"2026-06-16T23:05:29Z","products":[{"vendor":"microsoft","product":"windows_live_messenger"}],"references":[{"url":"http://secunia.com/advisories/33985","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://www.vupen.com/english/advisories/2009/0466","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/48810","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.securityfocus.com/bid/33825","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/501043/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-0647"},{"url":"https://github.com/advisories/GHSA-vgwx-7mjc-5w5g"}],"sources":{"cve":[{"id":"CVE-2009-0647","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.","status":"published","published":"2009-02-19T16:00:00Z","modified":"2024-08-07T04:40:05.154Z","updated_at":"2026-11-02T14:33:25.896677Z"}],"euvd":[{"id":"EUVD-2009-0650","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.","status":"published","published":"2009-02-19T16:00:00Z","modified":"2024-08-07T04:40:05Z","updated_at":"2026-11-03T01:39:24.749817Z"}],"ghsa":[{"id":"GHSA-vgwx-7mjc-5w5g","title":"msnmsgr.exe in Windows Live Messenger (WLM) 2009 build 14.0.8064.206, and other 14.0.8064.x...","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.","status":"published","published":"2022-05-02T03:17:08Z","modified":"2023-01-31T05:07:12Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:49:10.26963Z"}],"nvd":[{"id":"CVE-2009-0647","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.","status":"published","published":"2009-02-19T16:30:00.563Z","modified":"2026-06-16T23:05:29.387Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:01:33.417327Z"}]}}