Microsoft Windows XP memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in Microsoft Windows XP (Operating System) and classified as very critical. This issue affects some unknown functionality. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Untrusted search path vulnerability in the Microsoft Active Accessibility component in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows local users to gain privileges via a Trojan horse DLL in the current working directory, aka "Active Accessibility Insecure Library Loading Vulnerability."

The weakness was released 10/11/2011 with Adobe as MS11-075 as confirmed bulletin (Technet). It is possible to read the advisory at The identification of this vulnerability is CVE-2011-1247. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 11/23/2021).

The vulnerability scanner Nessus provides a plugin with the ID 56449 (MS11-075: Vulnerability in Microsoft Active Accessibility Could Allow Remote Code Execution (2623699)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90743 (Microsoft Active Accessibility Remote Code Execution Vulnerability (MS11-075)).

Applying the patch MS11-075 is able to eliminate this problem. The bugfix is ready for download at Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11754.

The vulnerability is also documented in the databases at X-Force (70152) and Tenable (56449).






  • commercial


  • end of life (version)

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
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Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Current Price Estimation: 🔍


Nessus ID: 56449
Nessus Name: MS11-075: Vulnerability in Microsoft Active Accessibility Could Allow Remote Code Execution (2623699)
Nessus File: 🔍
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OpenVAS ID: 902746
OpenVAS Name: Microsoft Active Accessibility Remote Code Execution Vulnerability (2623699)
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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS11-075
TippingPoint: 🔍

McAfee IPS: 🔍
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ISS Proventia IPS: 🔍


03/04/2011 🔍
10/11/2011 +221 days 🔍
10/11/2011 +0 days 🔍
10/11/2011 +0 days 🔍
10/11/2011 +0 days 🔍
10/11/2011 +0 days 🔍
10/12/2011 +1 days 🔍
03/23/2015 +1258 days 🔍
11/23/2021 +2437 days 🔍



Advisory: MS11-075
Organization: Adobe
Status: Confirmed

CVE: CVE-2011-1247 (🔍)

X-Force: 70152
Vulnerability Center: 33530 - [MS11-075] Microsoft Windows Active Accessibility Component DLL Loading Vulnerability, Critical
SecurityFocus: 49976 - Microsoft Windows Active Accessibility DLL Loading Arbitrary Code Execution Vulnerability


Created: 03/23/2015 04:50 PM
Updated: 11/23/2021 02:29 PM
Changes: 03/23/2015 04:50 PM (70), 04/03/2017 05:56 PM (11), 11/23/2021 02:25 PM (2), 11/23/2021 02:29 PM (1)
Complete: 🔍


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