CVE-2014-6363

Microsoft Internet Explorer 8/9/10/11 / IIS / CScript.exe/WScript.exe VBScript - CRegExp..Execute Use of Uninitialized Memory (MS14-080/MS14-084)

Severity Score

8.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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."

vbscript.dll en Microsoft VBScript 5.6 hasta 5.8, utilizado con Internet Explorer 6 hasta 11 y otros productos, permite a atacantes remotos ejecutar código arbitrario o causar una denegación de servicio (corrupción de memoria) a través de un sitio web manipulado, también conocido como 'Vulnerabilidad de la corrupción de memoria de VBScript'.

A specially crafted script can cause the VBScript engine to access data before initializing it. An attacker that is able to run such a script in any application that embeds the VBScript engine may be able to control execution flow and execute arbitrary code. This includes all versions of Microsoft Internet Explorer.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2014-09-11 CVE Reserved
2014-12-11 CVE Published
2016-11-07 First Exploit
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-399: Resource Management Errors

CAPEC

References (5)

URL	Tag	Source
https://www.verisign.com/en_US/security-services/security-intelligence/vulnerability-reports/articles/index.xhtml?id=1075	Third Party Advisory

URL	Date	SRC
https://packetstorm.news/files/id/139598	2016-11-07
https://www.exploit-db.com/exploits/40721	2024-08-06

URL	Date	SRC

URL	Date	SRC
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-080	2018-10-12
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-084	2018-10-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"	Vbscript Search vendor "Microsoft" for product "Vbscript"	5.6 Search vendor "Microsoft" for product "Vbscript" and version "5.6"	-	Affected	in	Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	6 Search vendor "Microsoft" for product "Internet Explorer" and version "6"	-	Affected
Microsoft Search vendor "Microsoft"	Vbscript Search vendor "Microsoft" for product "Vbscript"	5.6 Search vendor "Microsoft" for product "Vbscript" and version "5.6"	-	Affected	in	Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	7 Search vendor "Microsoft" for product "Internet Explorer" and version "7"	-	Affected
Microsoft Search vendor "Microsoft"	Vbscript Search vendor "Microsoft" for product "Vbscript"	5.6 Search vendor "Microsoft" for product "Vbscript" and version "5.6"	-	Affected	in	Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	8 Search vendor "Microsoft" for product "Internet Explorer" and version "8"	-	Affected
Microsoft Search vendor "Microsoft"	Vbscript Search vendor "Microsoft" for product "Vbscript"	5.6 Search vendor "Microsoft" for product "Vbscript" and version "5.6"	-	Affected	in	Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	9 Search vendor "Microsoft" for product "Internet Explorer" and version "9"	-	Affected
Microsoft Search vendor "Microsoft"	Vbscript Search vendor "Microsoft" for product "Vbscript"	5.6 Search vendor "Microsoft" for product "Vbscript" and version "5.6"	-	Affected	in	Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	10 Search vendor "Microsoft" for product "Internet Explorer" and version "10"	-	Affected
Microsoft Search vendor "Microsoft"	Vbscript Search vendor "Microsoft" for product "Vbscript"	5.6 Search vendor "Microsoft" for product "Vbscript" and version "5.6"	-	Affected	in	Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	11 Search vendor "Microsoft" for product "Internet Explorer" and version "11"	-	Affected
Microsoft Search vendor "Microsoft"	Vbscript Search vendor "Microsoft" for product "Vbscript"	5.7 Search vendor "Microsoft" for product "Vbscript" and version "5.7"	-	Affected	in	Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	6 Search vendor "Microsoft" for product "Internet Explorer" and version "6"	-	Affected
Microsoft Search vendor "Microsoft"	Vbscript Search vendor "Microsoft" for product "Vbscript"	5.7 Search vendor "Microsoft" for product "Vbscript" and version "5.7"	-	Affected	in	Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	7 Search vendor "Microsoft" for product "Internet Explorer" and version "7"	-	Affected
Microsoft Search vendor "Microsoft"	Vbscript Search vendor "Microsoft" for product "Vbscript"	5.7 Search vendor "Microsoft" for product "Vbscript" and version "5.7"	-	Affected	in	Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	8 Search vendor "Microsoft" for product "Internet Explorer" and version "8"	-	Affected
Microsoft Search vendor "Microsoft"	Vbscript Search vendor "Microsoft" for product "Vbscript"	5.7 Search vendor "Microsoft" for product "Vbscript" and version "5.7"	-	Affected	in	Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	9 Search vendor "Microsoft" for product "Internet Explorer" and version "9"	-	Affected
Microsoft Search vendor "Microsoft"	Vbscript Search vendor "Microsoft" for product "Vbscript"	5.7 Search vendor "Microsoft" for product "Vbscript" and version "5.7"	-	Affected	in	Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	10 Search vendor "Microsoft" for product "Internet Explorer" and version "10"	-	Affected
Microsoft Search vendor "Microsoft"	Vbscript Search vendor "Microsoft" for product "Vbscript"	5.7 Search vendor "Microsoft" for product "Vbscript" and version "5.7"	-	Affected	in	Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	11 Search vendor "Microsoft" for product "Internet Explorer" and version "11"	-	Affected
Microsoft Search vendor "Microsoft"	Vbscript Search vendor "Microsoft" for product "Vbscript"	5.8 Search vendor "Microsoft" for product "Vbscript" and version "5.8"	-	Affected	in	Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	6 Search vendor "Microsoft" for product "Internet Explorer" and version "6"	-	Affected
Microsoft Search vendor "Microsoft"	Vbscript Search vendor "Microsoft" for product "Vbscript"	5.8 Search vendor "Microsoft" for product "Vbscript" and version "5.8"	-	Affected	in	Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	7 Search vendor "Microsoft" for product "Internet Explorer" and version "7"	-	Affected
Microsoft Search vendor "Microsoft"	Vbscript Search vendor "Microsoft" for product "Vbscript"	5.8 Search vendor "Microsoft" for product "Vbscript" and version "5.8"	-	Affected	in	Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	8 Search vendor "Microsoft" for product "Internet Explorer" and version "8"	-	Affected
Microsoft Search vendor "Microsoft"	Vbscript Search vendor "Microsoft" for product "Vbscript"	5.8 Search vendor "Microsoft" for product "Vbscript" and version "5.8"	-	Affected	in	Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	9 Search vendor "Microsoft" for product "Internet Explorer" and version "9"	-	Affected
Microsoft Search vendor "Microsoft"	Vbscript Search vendor "Microsoft" for product "Vbscript"	5.8 Search vendor "Microsoft" for product "Vbscript" and version "5.8"	-	Affected	in	Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	10 Search vendor "Microsoft" for product "Internet Explorer" and version "10"	-	Affected
Microsoft Search vendor "Microsoft"	Vbscript Search vendor "Microsoft" for product "Vbscript"	5.8 Search vendor "Microsoft" for product "Vbscript" and version "5.8"	-	Affected	in	Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	11 Search vendor "Microsoft" for product "Internet Explorer" and version "11"	-	Affected