Executive Summary

Title Cumulative Security Update for JScript and VBScript to Address Remote Code Execution (3116178)
Name MS15-126 First vendor Publication 2015-12-08
Vendor Microsoft Last vendor Modification 2016-05-25
Severity (Vendor) Critical Revision 1.1

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: V1.1 (May 25, 2016): Removed redundant rows from the Vulnerability Severity Rating and Maximum Security Impact by Affected Software table, and added the applicable update numbers for clarity. This is an informational change only.
Summary: This security update resolves vulnerabilities in the VBScript scripting engine in Microsoft Windows. The more severe of the vulnerabilities could allow remote code execution if an attacker hosts a specially crafted website that is designed to exploit the vulnerabilities through Internet Explorer (or leverages a compromised website or a website that accepts or hosts user-provided content or advertisements) and then convinces a user to view the website. An attacker could also embed an ActiveX control marked "safe for initialization" in an application or Microsoft Office document that uses the Internet Explorer rendering engine to direct the user to the specially crafted website.

Original Source

Url : https://technet.microsoft.com/en-us/library/security/MS15-126

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-200 Information Exposure
50 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

CPE : Common Platform Enumeration

Application 2
Application 2

Snort® IPS/IDS

Date Description
2016-03-14 Microsoft Internet Explorer VBScript engine use after free attempt
RuleID : 36923 - Revision : 7 - Type : BROWSER-IE
2016-03-14 Microsoft Internet Explorer VBScript engine use after free attempt
RuleID : 36922 - Revision : 7 - Type : BROWSER-IE

Nessus® Vulnerability Scanner

Date Description
2015-12-08 Name : The remote host has a web browser installed that is affected by multiple vuln...
File : smb_nt_ms15-124.nasl - Type : ACT_GATHER_INFO
2015-12-08 Name : The remote Windows host is affected by multiple vulnerabilities.
File : smb_nt_ms15-126.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2016-05-26 05:34:48
  • Multiple Updates
2016-05-26 05:16:17
  • Multiple Updates
2015-12-09 21:30:02
  • Multiple Updates
2015-12-09 17:29:28
  • Multiple Updates
2015-12-09 13:25:13
  • Multiple Updates
2015-12-08 21:29:37
  • Multiple Updates
2015-12-08 21:17:06
  • First insertion