{"cve":"CVE-2009-3676","nvd":{"published":"2009-11-13T15:30:00.733","modified":"2026-06-16T23:12:08.950","status":"Modified","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.\"","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-399"],"references":["http://blogs.technet.com/msrc/archive/2009/11/13/microsoft-security-advisory-977544-released.aspx","http://g-laurent.blogspot.com/2009/11/windows-7-server-2008r2-remote-kernel.html","http://news.cnet.com/8301-27080_3-10395891-245.html","http://praetorianprefect.com/archives/2009/11/how-to-crash-windows-7-and-server-2008/","http://seclists.org/fulldisclosure/2009/Nov/134"],"products":["microsoft:windows_7","microsoft:windows_server_2008"],"source":"nvd","synced_at":"2026-10-19T19:54:26.868835795+00:00"},"epss":{"cve":"CVE-2009-3676","score":0.34576,"percentile":0.98418,"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."]}