MS12-056: Vulnerability in JScript and VBScript Scripting Engines Could Allow Remote Code Execution (2706045)

High Nessus Plugin ID 61531


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


The installed versions of the JScript and VBScript scripting engines contain an integer overflow vulnerability that can occur when the scripting engines process a script in a web page and attempt to calculate the size of an object in memory during a copy operation.

By tricking a user on the affected system into visiting a malicious web site, an attacker may be able to exploit this issue to execute arbitrary code subject to the user's privileges.


Microsoft has released a set of patches for 64-bit editions of Windows XP, 2003, Vista, 2008, 7, and 2008 R2.

See Also

Plugin Details

Severity: High

ID: 61531

File Name: smb_nt_ms12-056.nasl

Version: 1.13

Type: local

Agent: windows

Published: 2012/08/15

Updated: 2018/11/15

Dependencies: 61527, 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: 2012/08/14

Vulnerability Publication Date: 2012/08/14

Reference Information

CVE: CVE-2012-2523

BID: 54945

MSFT: MS12-056

IAVA: 2012-A-0130

MSKB: 2706045