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

Critical Nessus Plugin ID 42106

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VPR Score: 8.9


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: 2009/10/13

Updated: 2018/11/15

Dependencies: 13855, 57033

Risk Information

Risk Factor: Critical

VPR Score: 8.9

CVSS v2.0

Base Score: 10

Temporal Score: 8.7

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

Temporal Vector: CVSS2#E:H/RL:OF/RC:C

CVSS v3.0

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: 2009/10/13

Vulnerability Publication Date: 2009/09/08

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

MSFT: MS09-050

MSKB: 975517

CERT: 135940

EDB-ID: 9594, 10005, 12524, 14674, 16363

CWE: 94, 399