MS09-050: Vulnerabilities in SMBv2 Could Allow Remote Code Execution (975517) (EDUCATEDSCHOLAR)

critical Nessus Plugin ID 42106


The remote SMB server can be abused to execute code remotely.


The remote Windows host contains a vulnerable SMBv2 implementation with the following issues :

- A specially crafted SMBv2 packet can cause an infinite loop in the Server service. A remote, unauthenticated attacker can exploit this to cause a denial of service. (CVE-2009-2526)

- Sending a specially crafted SMBv2 packet to the Server service can result in code execution. A remote, unauthenticated attacker can exploit this to take complete control of the system. (CVE-2009-2532, CVE-2009-3103) (EDUCATEDSCHOLAR)

EDUCATEDSCHOLAR is one of multiple Equation Group vulnerabilities and exploits disclosed on 2017/04/14 by a group known as the Shadow Brokers.


Microsoft has released a set of patches for Windows Vista and 2008.

See Also

Plugin Details

Severity: Critical

ID: 42106

File Name: smb_nt_ms09-050.nasl

Version: 1.29

Type: local

Agent: windows

Published: 10/13/2009

Updated: 11/15/2018

Risk Information


Risk Factor: High

Score: 8.9


Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/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: 10/13/2009

Vulnerability Publication Date: 9/8/2009

Exploitable With


Core Impact

Metasploit (MS09-050 Microsoft SRV2.SYS SMB Negotiate ProcessID Function Table Dereference)

Reference Information

CVE: CVE-2009-2526, CVE-2009-2532, CVE-2009-3103

BID: 36299, 36594, 36595

CWE: 399, 94

MSFT: MS09-050

CERT: 135940

MSKB: 975517