Executive Summary

Title Vulnerability in VBScript Scripting Engine Could Allow Remote Code Execution (3072604)
Name MS15-066 First vendor Publication 2015-07-14
Vendor Microsoft Last vendor Modification 2015-07-14
Severity (Vendor) Critical Revision 1.0

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 9.3 Attack Range Network
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


Severity Rating: Critical
Revision Note: V1.0 (July 14, 2015): Bulletin published.
Summary: This security update resolves a vulnerability in the VBScript scripting engine in Microsoft Windows. The vulnerability could allow remote code execution if a user visits a specially crafted website. An attacker who successfully exploited this vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

Original Source

Url : https://technet.microsoft.com/en-us/library/security/MS15-066

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:28938
Oval ID: oval:org.mitre.oval:def:28938
Title: VBScript Memory corruption vulnerability - CVE-2015-2372 (MS15-065 and MS15-066)
Description: vbscript.dll in Microsoft VBScript 5.6 through 5.8, as used with Internet Explorer 6 through 11 and other products, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "VBScript Memory Corruption Vulnerability."
Family: windows Class: vulnerability
Reference(s): CVE-2015-2372
Version: 3
Platform(s): Microsoft Windows Server 2003
Microsoft Windows Vista
Microsoft Windows Server 2008
Microsoft Windows 7
Microsoft Windows Server 2008 R2
Microsoft Windows 8
Microsoft Windows Server 2012
Microsoft Windows 8.1
Microsoft Windows Server 2012 R2
Product(s): Microsoft VBScript 5.6
Microsoft VBScript 5.7
Microsoft VBScript 5.8
Definition Synopsis:

CPE : Common Platform Enumeration

Application 3

Information Assurance Vulnerability Management (IAVM)

Date Description
2015-07-16 IAVM : 2015-A-0166 - Microsoft VBScript Memory Corruption Vulnerability (MS15-066)
Severity : Category II - VMSKEY : V0061127

Snort® IPS/IDS

Date Description
2015-08-14 Microsoft Internet Explorer 10 VBScript array element use after free attempt
RuleID : 35214 - Revision : 2 - Type : BROWSER-IE
2015-08-14 Microsoft Internet Explorer 10 VBScript array element use after free attempt
RuleID : 35213 - Revision : 2 - Type : BROWSER-IE

Nessus® Vulnerability Scanner

Date Description
2015-07-15 Name : The remote host has a web browser installed that is affected by multiple vuln...
File : smb_nt_ms15-065.nasl - Type : ACT_GATHER_INFO
2015-07-14 Name : The remote Windows host is affected by a remote code execution vulnerability.
File : smb_nt_ms15-066.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2015-10-18 17:26:36
  • Multiple Updates
2015-07-18 13:29:46
  • Multiple Updates
2015-07-15 21:27:45
  • Multiple Updates
2015-07-15 05:31:35
  • Multiple Updates
2015-07-14 21:30:39
  • Multiple Updates
2015-07-14 21:17:09
  • First insertion