Microsoft Internet Explorer 8/9 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 8/9 (Web Browser). It has been rated as critical. Affected by this issue is an unknown function. 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. CVE summarizes:

Microsoft Internet Explorer 8 and 9 does not properly handle objects in memory, which allows user-assisted remote attackers to execute arbitrary code by accessing a deleted object, aka "Developer Toolbar Remote Code Execution Vulnerability."

The bug was discovered 01/15/2012. The weakness was released 06/12/2012 by Roman Shafigullin with Code Audit Labs as MS12-037 as confirmed bulletin (Microsoft Technet). The advisory is shared for download at The public release was coordinated with the vendor. This vulnerability is handled as CVE-2012-1874 since 03/22/2012. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a private exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 149 days. During that time the estimated underground price was around $25k-$100k. 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 12384.

The vulnerability is also documented in the databases at X-Force (75954) and Tenable (59455). Entries connected to this vulnerability are available at 5514, 5515, 5517 and 5527.








  • end of life

CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
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Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
ATT&CK: T1059

Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Proof-of-Concept
Download: 🔍

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Nessus ID: 59455
Nessus Name: MS12-037: Cumulative Security Update for Internet Explorer (2699988)
Nessus File: 🔍
Nessus Risk: 🔍
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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
Status: 🔍

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0-Day Time: 🔍
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Patch: MS12-037
TippingPoint: 🔍
ISS Proventia IPS: 🔍
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01/15/2012 🔍
03/22/2012 +67 days 🔍
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 🔍
06/13/2012 +1 days 🔍
06/13/2012 +0 days 🔍
03/25/2021 +3207 days 🔍



Advisory: MS12-037
Researcher: Roman Shafigullin
Organization: Code Audit Labs
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2012-1874 (🔍)

X-Force: 75954
SecurityTracker: 1027147 - Microsoft Internet Explorer Bugs Let Remote Users Execute Arbitrary Code, Conduct Cross-Site Scripting Attacks, and Obtain Potentially Sensitive Information
Vulnerability Center: 35313 - [MS12-037] Microsoft Internet Explorer 8 and 9 Remote Code Execution Through Developer Toolbar, Critical
SecurityFocus: 53845 - Microsoft Internet Explorer CVE-2012-1874 Developer Toolbar Remote Code Execution Vulnerability
Secunia: 49412 - Microsoft Internet Explorer Multiple Vulnerabilities, Extremely Critical
OSVDB: 82864 - Microsoft IE Developer Toolbar Deleted Object Handling Memory Corruption

scip Labs:
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Created: 06/13/2012 11:50 AM
Updated: 03/25/2021 11:53 AM
Changes: 06/13/2012 11:50 AM (58), 04/07/2017 12:02 PM (31), 03/25/2021 11:49 AM (8), 03/25/2021 11:53 AM (2)
Complete: 🔍


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