// For flags

CVE-2009-2530

Microsoft Internet Explorer Event Object Type Double-Free Vulnerability

Severity Score

9.3
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Microsoft Internet Explorer 6, 6 SP1, 7, and 8 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is deleted, leading to memory corruption, aka "Uninitialized Memory Corruption Vulnerability," a different vulnerability than CVE-2009-2531.

Microsoft Internet Explorer v6, v6 SP1, v7, y v8 no gestiona adecuadamente los objetos en memoria, lo que permite a atacantes remotos ejecutar código arbitrario mediante el acceso a un objeto que (1) no ha sido adecuadamente inicializado o (2) es borrado, lo que lleva a una corrupción de memoria, también conocido como "Vulnerabilidad de memoria no inicializada corrupta", una vulnerabilidad diferente que CVE-2008-2531.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page.
The specific flaw exists within the copy constructor for a specific DOM object. When duplicated, more than one reference can be made of anything assigned to it's properties. When the variable/object goes out of scope, these properties will be deallocated twice. This results in a heap corruption which can lead to code execution under the context of the current user.

*Credits: AnonymousAnonymous
CVSS Scores
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
  • 2009-07-17 CVE Reserved
  • 2009-10-13 CVE Published
  • 2024-08-07 CVE Updated
  • 2024-10-27 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-94: Improper Control of Generation of Code ('Code Injection')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Microsoft
Search vendor "Microsoft"
Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
5.01
Search vendor "Microsoft" for product "Internet Explorer" and version "5.01"
sp4
Affected
in Microsoft
Search vendor "Microsoft"
Windows 2000
Search vendor "Microsoft" for product "Windows 2000"
*sp4
Affected
Microsoft
Search vendor "Microsoft"
Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
6
Search vendor "Microsoft" for product "Internet Explorer" and version "6"
sp1
Affected
in Microsoft
Search vendor "Microsoft"
Windows 2000
Search vendor "Microsoft" for product "Windows 2000"
*sp4
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Server 2003
Search vendor "Microsoft" for product "Windows Server 2003"
*sp2
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Xp
Search vendor "Microsoft" for product "Windows Xp"
*sp3
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Xp
Search vendor "Microsoft" for product "Windows Xp"
-sp2, home
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Xp
Search vendor "Microsoft" for product "Windows Xp"
-sp2, x64
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Server 2003
Search vendor "Microsoft" for product "Windows Server 2003"
*sp2
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Server 2008
Search vendor "Microsoft" for product "Windows Server 2008"
*itanium
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Server 2008
Search vendor "Microsoft" for product "Windows Server 2008"
*x32
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Server 2008
Search vendor "Microsoft" for product "Windows Server 2008"
*x64
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Server 2008
Search vendor "Microsoft" for product "Windows Server 2008"
*sp2, x64
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Server 2008
Search vendor "Microsoft" for product "Windows Server 2008"
-sp2, itanium
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Server 2008
Search vendor "Microsoft" for product "Windows Server 2008"
-sp2, x86
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Vista
Search vendor "Microsoft" for product "Windows Vista"
*-
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Vista
Search vendor "Microsoft" for product "Windows Vista"
*sp1
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Vista
Search vendor "Microsoft" for product "Windows Vista"
*sp2
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Vista
Search vendor "Microsoft" for product "Windows Vista"
-x64
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Vista
Search vendor "Microsoft" for product "Windows Vista"
-sp1
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Vista
Search vendor "Microsoft" for product "Windows Vista"
-sp2
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Xp
Search vendor "Microsoft" for product "Windows Xp"
*sp3
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Xp
Search vendor "Microsoft" for product "Windows Xp"
-sp2, home
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Xp
Search vendor "Microsoft" for product "Windows Xp"
-sp2, x64
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows 7
Search vendor "Microsoft" for product "Windows 7"
--
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Server 2003
Search vendor "Microsoft" for product "Windows Server 2003"
*sp2
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Server 2008
Search vendor "Microsoft" for product "Windows Server 2008"
*x32
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Server 2008
Search vendor "Microsoft" for product "Windows Server 2008"
*x64
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Server 2008
Search vendor "Microsoft" for product "Windows Server 2008"
*r2, itanium
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Server 2008
Search vendor "Microsoft" for product "Windows Server 2008"
*r2, x64
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Server 2008
Search vendor "Microsoft" for product "Windows Server 2008"
*sp2, x64
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Server 2008
Search vendor "Microsoft" for product "Windows Server 2008"
-sp2, x86
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Vista
Search vendor "Microsoft" for product "Windows Vista"
*-
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Vista
Search vendor "Microsoft" for product "Windows Vista"
*sp1
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Vista
Search vendor "Microsoft" for product "Windows Vista"
*sp2
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Vista
Search vendor "Microsoft" for product "Windows Vista"
-x64
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Vista
Search vendor "Microsoft" for product "Windows Vista"
-sp2
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Xp
Search vendor "Microsoft" for product "Windows Xp"
*sp3
Affected
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
in Microsoft
Search vendor "Microsoft"
Windows Xp
Search vendor "Microsoft" for product "Windows Xp"
-sp2, x64
Affected