{"id":"CVE-2009-4171","aliases":["EUVD-2009-4141","GHSA-rmjx-qrw2-mx8p"],"status":"published","title":"An ActiveX control in YahooBridgeLib.dll for Yahoo! Messenger 9.0.0.2162, and possibly other 9.0...","description":"An ActiveX control in YahooBridgeLib.dll for Yahoo! Messenger 9.0.0.2162, and possibly other 9.0 versions, allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) by calling the RegisterMe method with a long argument.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.05087,"percentile":0.92404,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-119"],"published":"2009-12-02T19:00:00Z","modified":"2026-06-16T23:13:10Z","exploits":[{"source":"exploitdb","id":"EDB-10092","title":"Yahoo! Messenger 9.0.0.2162 - 'YahooBridgeLib.dll' ActiveX Control Remote Denial of Service","type":"dos","platform":"windows","date":"2009-11-12","verified":true,"url":"https://www.exploit-db.com/exploits/10092"},{"source":"exploitdb","id":"EDB-33350","title":"Yahoo! Messenger 9 - 'YahooBridgeLib.dll' ActiveX Control Remote Denial of Service","type":"dos","platform":"windows","date":"2009-11-12","verified":true,"url":"https://www.exploit-db.com/exploits/33350"}],"products":[{"vendor":"yahoo","product":"messenger"}],"references":[{"url":"http://www.securityfocus.com/archive/1/507818/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/54263","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.securityfocus.com/bid/37007","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-4171"},{"url":"https://github.com/advisories/GHSA-rmjx-qrw2-mx8p"}],"sources":{"cve":[{"id":"CVE-2009-4171","description":"An ActiveX control in YahooBridgeLib.dll for Yahoo! Messenger 9.0.0.2162, and possibly other 9.0 versions, allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) by calling the RegisterMe method with a long argument.","status":"published","published":"2009-12-02T19:00:00Z","modified":"2024-08-07T06:54:09.794Z","updated_at":"2026-11-02T14:33:24.782697Z"}],"euvd":[{"id":"EUVD-2009-4141","description":"An ActiveX control in YahooBridgeLib.dll for Yahoo! Messenger 9.0.0.2162, and possibly other 9.0 versions, allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) by calling the RegisterMe method with a long argument.","status":"published","published":"2009-12-02T19:00:00Z","modified":"2024-08-07T06:54:09Z","updated_at":"2026-11-03T01:39:11.214145Z"}],"ghsa":[{"id":"GHSA-rmjx-qrw2-mx8p","title":"An ActiveX control in YahooBridgeLib.dll for Yahoo! Messenger 9.0.0.2162, and possibly other 9.0...","description":"An ActiveX control in YahooBridgeLib.dll for Yahoo! Messenger 9.0.0.2162, and possibly other 9.0 versions, allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) by calling the RegisterMe method with a long argument.","status":"published","published":"2022-05-02T03:52:20Z","modified":"2023-01-31T05:09:00Z","cwes":["CWE-119"],"updated_at":"2026-11-02T14:49:28.537064Z"}],"nvd":[{"id":"CVE-2009-4171","description":"An ActiveX control in YahooBridgeLib.dll for Yahoo! Messenger 9.0.0.2162, and possibly other 9.0 versions, allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) by calling the RegisterMe method with a long argument.","status":"published","published":"2009-12-02T19:30:00.25Z","modified":"2026-06-16T23:13:10.627Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:01:37.939838Z"}]}}