Microsoft Internet Explorer 6/7/8/9 insertAdjacentText Elements code injection

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Microsoft Internet Explorer 6/7/8/9 (Web Browser) and classified as critical. This issue affects an unknown functionality of the component insertAdjacentText Elements Handler. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Microsoft Internet Explorer 6 through 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by attempting to access an undefined memory location, aka "insertAdjacentText Remote Code Execution Vulnerability."

The weakness was released 06/12/2012 by Roman Shafigullin with Zero Day Initiative (ZDI) as MS12-037 as confirmed bulletin (Microsoft Technet). It is possible to read the advisory at The public release was coordinated with Microsoft. The identification of this vulnerability is CVE-2012-1879 since 03/22/2012. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a private exploit is available. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 59455 (MS12-037: Cumulative Security Update for Internet Explorer (2699988)), 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 100116 (Microsoft Internet Explorer Cumulative Security Update (MS12-037)).

Applying the patch MS12-037 is able to eliminate this problem. The bugfix is ready for download at A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 12383.

The vulnerability is also documented in the databases at X-Force (75959) and Tenable (59455).








  • end of life

CPE 2.3info

CPE 2.2info


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VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.1
VulDB Temp Score: 6.4
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Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707

Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Proof-of-Concept
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Nessus ID: 59455
Nessus Name: MS12-037: Cumulative Security Update for Internet Explorer (2699988)
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OpenVAS ID: 902682
OpenVAS Name: Microsoft Internet Explorer Multiple Vulnerabilities (2699988)
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Threat Intelligenceinfo

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Recommended: Patch
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Patch: MS12-037
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PaloAlto IPS: 🔍
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03/22/2012 🔍
06/12/2012 +82 days 🔍
06/12/2012 +0 days 🔍
06/12/2012 +0 days 🔍
06/12/2012 +0 days 🔍
06/12/2012 +0 days 🔍
06/12/2012 +0 days 🔍
06/12/2012 +0 days 🔍
06/13/2012 +1 days 🔍
06/13/2012 +0 days 🔍
03/25/2021 +3207 days 🔍



Advisory: MS12-037
Researcher: Roman Shafigullin
Organization: Zero Day Initiative (ZDI)
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2012-1879 (🔍)

X-Force: 75959 - Microsoft Internet Explorer insertAdjacentText code execution, High Risk
SecurityTracker: 1027147 - Microsoft Internet Explorer Bugs Let Remote Users Execute Arbitrary Code, Conduct Cross-Site Scripting Attacks, and Obtain Potentially Sensitive Information
Vulnerability Center: 35323 - [MS12-037] Microsoft Internet Explorer 6-9 Remote Code Execution via Undefined Memory Location, Critical
SecurityFocus: 53868 - Microsoft Internet Explorer CVE-2012-1879 'insertAdjacentText()' Method Code Execution Vulnerability
Secunia: 49412 - Microsoft Internet Explorer Multiple Vulnerabilities, Extremely Critical
OSVDB: 82869 - Microsoft IE insertAdjacentText Memory Location Accessing Memory Corruption

scip Labs:


Created: 06/13/2012 05:33 PM
Updated: 03/25/2021 02:02 PM
Changes: 06/13/2012 05:33 PM (57), 04/07/2017 12:18 PM (37), 03/25/2021 01:57 PM (8), 03/25/2021 02:02 PM (2)
Complete: 🔍
Cache ID: 100:1EE:40


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