MS11-031: Vulnerability in JScript and VBScript Scripting Engines Could Allow Remote Code Execution (2514666)

High Nessus Plugin ID 53388


Arbitrary code can be executed on the remote host through the installed JScript and VBScript scripting engines.


The installed version of the JScript and VBScript scripting engines contains an integer overflow vulnerability that can occur when the scripting engines process a script in a web page and attempt to reallocate memory while decoding the script.

If an attacker can trick a user on the affected system into visiting a malicious website, this issue could be leveraged to execute arbitrary code subject to the user's privileges.


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

See Also

Plugin Details

Severity: High

ID: 53388

File Name: smb_nt_ms11-031.nasl

Version: 1.18

Type: local

Agent: windows

Published: 2011/04/13

Updated: 2018/11/15

Dependencies: 57033, 13855

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 9.3

Temporal Score: 6.9

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

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

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2011/04/12

Vulnerability Publication Date: 2011/04/12

Reference Information

CVE: CVE-2011-0663

BID: 47249

MSFT: MS11-031

MSKB: 2510531, 2510581, 2510587