{"id":"CVE-2010-0477","aliases":["EUVD-2010-0508","GHSA-mvcc-q3f8-gccx"],"status":"published","title":"The SMB client in Microsoft Windows Server 2008 R2 and Windows 7 does not properly handle (1)...","description":"The SMB client in Microsoft Windows Server 2008 R2 and Windows 7 does not properly handle (1) SMBv1 and (2) SMBv2 response packets, which allows remote SMB servers and man-in-the-middle attackers to execute arbitrary code via a crafted packet that causes the client to read the entirety of the response, and then improperly interact with the Winsock Kernel (WSK), aka \"SMB Client Message Size Vulnerability.\"","severity":{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.50186,"percentile":0.98914,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-399"],"published":"2010-04-14T15:44:00Z","modified":"2026-06-16T23:16:15Z","exploits":[{"source":"exploitdb","id":"EDB-12273","title":"Microsoft Windows 7/2008 R2 - SMB Client Trans2 Stack Overflow (MS10-020) (PoC)","type":"dos","platform":"windows","date":"2010-04-17","verified":true,"url":"https://www.exploit-db.com/exploits/12273"}],"products":[{"vendor":"microsoft","product":"windows_7"},{"vendor":"microsoft","product":"windows_server_2008"}],"references":[{"url":"http://secunia.com/advisories/39372","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-020","tags":["vendor-advisory","x_refsource_MS","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://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6859","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2010-0477"},{"url":"https://github.com/advisories/GHSA-mvcc-q3f8-gccx"}],"sources":{"cve":[{"id":"CVE-2010-0477","description":"The SMB client in Microsoft Windows Server 2008 R2 and Windows 7 does not properly handle (1) SMBv1 and (2) SMBv2 response packets, which allows remote SMB servers and man-in-the-middle attackers to execute arbitrary code via a crafted packet that causes the client to read the entirety of the response, and then improperly interact with the Winsock Kernel (WSK), aka \"SMB Client Message Size Vulnerability.\"","status":"published","published":"2010-04-14T15:44:00Z","modified":"2024-08-07T00:52:18.934Z","updated_at":"2026-11-02T14:33:29.990758Z"}],"euvd":[{"id":"EUVD-2010-0508","description":"The SMB client in Microsoft Windows Server 2008 R2 and Windows 7 does not properly handle (1) SMBv1 and (2) SMBv2 response packets, which allows remote SMB servers and man-in-the-middle attackers to execute arbitrary code via a crafted packet that causes the client to read the entirety of the response, and then improperly interact with the Winsock Kernel (WSK), aka \"SMB Client Message Size Vulnerability.\"","status":"published","published":"2010-04-14T15:44:00Z","modified":"2024-08-07T00:52:18Z","updated_at":"2026-11-03T01:39:45.195177Z"}],"ghsa":[{"id":"GHSA-mvcc-q3f8-gccx","title":"The SMB client in Microsoft Windows Server 2008 R2 and Windows 7 does not properly handle (1)...","description":"The SMB client in Microsoft Windows Server 2008 R2 and Windows 7 does not properly handle (1) SMBv1 and (2) SMBv2 response packets, which allows remote SMB servers and man-in-the-middle attackers to execute arbitrary code via a crafted packet that causes the client to read the entirety of the response, and then improperly interact with the Winsock Kernel (WSK), aka \"SMB Client Message Size Vulnerability.\"","status":"published","published":"2022-05-02T06:13:03Z","modified":"2023-02-01T05:00:33Z","updated_at":"2026-11-02T14:49:33.374495Z"}],"nvd":[{"id":"CVE-2010-0477","description":"The SMB client in Microsoft Windows Server 2008 R2 and Windows 7 does not properly handle (1) SMBv1 and (2) SMBv2 response packets, which allows remote SMB servers and man-in-the-middle attackers to execute arbitrary code via a crafted packet that causes the client to read the entirety of the response, and then improperly interact with the Winsock Kernel (WSK), aka \"SMB Client Message Size Vulnerability.\"","status":"published","published":"2010-04-14T16:00:01.71Z","modified":"2026-06-16T23:16:15.013Z","cvss":[{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-399"],"updated_at":"2026-11-02T14:01:45.97784Z"}]}}