{"id":"CVE-2009-3676","aliases":["EUVD-2009-3651","GHSA-8q5p-rpfq-gjc9"],"status":"published","title":"The SMB client in the kernel in Microsoft Windows Server 2008 R2 and Windows 7 allows remote SMB...","description":"The SMB client in the kernel in Microsoft Windows Server 2008 R2 and Windows 7 allows remote SMB servers and man-in-the-middle attackers to cause a denial of service (infinite loop and system hang) via a (1) SMBv1 or (2) SMBv2 response packet that contains (a) an incorrect length value in a NetBIOS header or (b) an additional length field at the end of this response packet, aka \"SMB Client Incomplete Response Vulnerability.\"","severity":{"version":"2.0","score":7.1,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.34576,"percentile":0.9843,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-399"],"published":"2009-11-13T15:00:00Z","modified":"2026-06-16T23:12:08Z","products":[{"vendor":"microsoft","product":"windows_7"},{"vendor":"microsoft","product":"windows_server_2008"}],"references":[{"url":"http://news.cnet.com/8301-27080_3-10395891-245.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://www.securitytracker.com/id?1023179","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://g-laurent.blogspot.com/2009/11/windows-7-server-2008r2-remote-kernel.html","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7186","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"http://www.microsoft.com/technet/security/advisory/977544.mspx","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"http://secunia.com/advisories/37347","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://www.vupen.com/english/advisories/2009/3216","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-020","tags":["vendor-advisory","x_refsource_MS","x_transferred"]},{"url":"http://praetorianprefect.com/archives/2009/11/how-to-crash-windows-7-and-server-2008/","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"http://secunia.com/blog/66/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"http://seclists.org/fulldisclosure/2009/Nov/134","tags":["mailing-list","x_refsource_FULLDISC","x_transferred","Exploit"]},{"url":"http://blogs.technet.com/msrc/archive/2009/11/13/microsoft-security-advisory-977544-released.aspx","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.us-cert.gov/cas/techalerts/TA10-103A.html","tags":["third-party-advisory","x_refsource_CERT","x_transferred","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-3676"},{"url":"http://praetorianprefect.com/archives/2009/11/how-to-crash-windows-7-and-server-2008"},{"url":"http://secunia.com/blog/66"},{"url":"https://github.com/advisories/GHSA-8q5p-rpfq-gjc9"}],"sources":{"cve":[{"id":"CVE-2009-3676","description":"The SMB client in the kernel in Microsoft Windows Server 2008 R2 and Windows 7 allows remote SMB servers and man-in-the-middle attackers to cause a denial of service (infinite loop and system hang) via a (1) SMBv1 or (2) SMBv2 response packet that contains (a) an incorrect length value in a NetBIOS header or (b) an additional length field at the end of this response packet, aka \"SMB Client Incomplete Response Vulnerability.\"","status":"published","published":"2009-11-13T15:00:00Z","modified":"2024-08-07T06:38:29.551Z","updated_at":"2026-11-02T14:33:23.749891Z"}],"euvd":[{"id":"EUVD-2009-3651","description":"The SMB client in the kernel in Microsoft Windows Server 2008 R2 and Windows 7 allows remote SMB servers and man-in-the-middle attackers to cause a denial of service (infinite loop and system hang) via a (1) SMBv1 or (2) SMBv2 response packet that contains (a) an incorrect length value in a NetBIOS header or (b) an additional length field at the end of this response packet, aka \"SMB Client Incomplete Response Vulnerability.\"","status":"published","published":"2009-11-13T15:00:00Z","modified":"2024-08-07T06:38:29Z","updated_at":"2026-11-03T01:39:12.69352Z"}],"ghsa":[{"id":"GHSA-8q5p-rpfq-gjc9","title":"The SMB client in the kernel in Microsoft Windows Server 2008 R2 and Windows 7 allows remote SMB...","description":"The SMB client in the kernel in Microsoft Windows Server 2008 R2 and Windows 7 allows remote SMB servers and man-in-the-middle attackers to cause a denial of service (infinite loop and system hang) via a (1) SMBv1 or (2) SMBv2 response packet that contains (a) an incorrect length value in a NetBIOS header or (b) an additional length field at the end of this response packet, aka \"SMB Client Incomplete Response Vulnerability.\"","status":"published","published":"2022-05-02T03:47:37Z","modified":"2025-04-09T04:17:26Z","updated_at":"2026-11-02T15:01:01.61975Z"}],"nvd":[{"id":"CVE-2009-3676","description":"The SMB client in the kernel in Microsoft Windows Server 2008 R2 and Windows 7 allows remote SMB servers and man-in-the-middle attackers to cause a denial of service (infinite loop and system hang) via a (1) SMBv1 or (2) SMBv2 response packet that contains (a) an incorrect length value in a NetBIOS header or (b) an additional length field at the end of this response packet, aka \"SMB Client Incomplete Response Vulnerability.\"","status":"published","published":"2009-11-13T15:30:00.733Z","modified":"2026-06-16T23:12:08.95Z","cvss":[{"version":"2.0","score":7.1,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-399"],"updated_at":"2026-11-02T14:01:37.939838Z"}]}}