MS10-020: Vulnerabilities in SMB Client Could Allow Remote Code Execution (980232)

high Nessus Plugin ID 45507
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


Arbitrary code can be executed on the remote host through the installed SMB client.


The version of the SMB client software installed on the remote Windows host may be affected by one or more vulnerabilities, including some that could allow arbitrary code execution :

- Incorrect handling of incomplete SMB responses could be abused to cause the system to stop responding.

- A vulnerability in the way the SMB client allocates memory when parsing specially crafted SMB responses could be abused by an unauthenticated, remote attacker to execute arbitrary code with system-level privileges.

- Improper validation of fields in SMB responses could lead to a memory corruption issue and in turn to arbitrary code execution with system-level privileges.

- Improper parsing of SMB transaction responses could lead to a memory corruption issue resulting in code execution with system-level privileges. (CVE-2010-0476)

- Improper handling of SMB responses could cause the SMB client to consume the entire response and indicate an invalid value to the Winsock kernel, which in turn could allow remote code execution and result in the compromise of the affected system. (CVE-2010-0477)


Microsoft has released a set of patches for Windows 2000, XP, 2003, Vista, 2008, 7, and 2008 R2.

See Also

Plugin Details

Severity: High

ID: 45507

File Name: smb_nt_ms10-020.nasl

Version: 1.23

Type: local

Agent: windows

Published: 4/13/2010

Updated: 11/15/2018

Dependencies: smb_hotfixes.nasl, ms_bulletin_checks_possible.nasl

Risk Information


Risk Factor: High

Score: 7.4


Risk Factor: High

Base Score: 9.3

Temporal Score: 7.7

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Temporal Vector: E:F/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/13/2010

Vulnerability Publication Date: 11/11/2009

Exploitable With

Core Impact

Reference Information

CVE: CVE-2009-3676, CVE-2010-0269, CVE-2010-0270, CVE-2010-0476, CVE-2010-0477

BID: 36989, 39312, 39336, 39339, 39340

MSFT: MS10-020

MSKB: 980232