Microsoft Internet Explorer 6 script memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.2$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Microsoft Internet Explorer 6. Affected is the function script. The manipulation leads to memory corruption. This vulnerability is documented as CVE-2006-5581. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Microsoft Internet Explorer 6 (Web Browser) and classified as very critical. This issue affects the function script. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product 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:

Unspecified vulnerability in Microsoft Internet Explorer 6 allows remote attackers to execute arbitrary code via certain DHTML script functions, such as normalize, and "incorrectly created elements" that trigger memory corruption, aka "DHTML Script Function Memory Corruption Vulnerability."

The issue has been introduced in 03/22/2001. The weakness was released 12/12/2006 by Sam Thomas with Zero Day Initiative (Website). It is possible to read the advisory at us-cert.gov. The identification of this vulnerability is CVE-2006-5581. 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 of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/15/2025). It is expected to see the exploit prices for this product decreasing in the near future.

The vulnerability was handled as a non-public zero-day exploit for at least 2091 days. During that time the estimated underground price was around $100k and more. The vulnerability scanner Nessus provides a plugin with the ID 23833 (MS06-072: Cumulative Security Update for Internet Explorer (925454)), 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 90371 (Cumulative Security Update for Internet Explorer (MS06-072)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 3377.

The vulnerability is also documented in the databases at X-Force (30604), Tenable (23833), SecurityFocus (BID 21546†), OSVDB (30814†) and Secunia (SA23288†). Entries connected to this vulnerability are available at VDB-2733, VDB-2736, VDB-2734 and VDB-2735. Be aware that VulDB is the high quality source for vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.6
VulDB Meta Temp Score: 9.2

VulDB Base Score: 9.6
VulDB Temp Score: 9.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 23833
Nessus Name: MS06-072: Cumulative Security Update for Internet Explorer (925454)
Nessus File: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

03/22/2001 🔍
12/12/2006 +2091 days 🔍
12/12/2006 +0 days 🔍
12/12/2006 +0 days 🔍
12/12/2006 +0 days 🔍
12/12/2006 +0 days 🔍
12/12/2006 +0 days 🔍
12/13/2006 +0 days 🔍
03/12/2015 +3011 days 🔍
06/15/2025 +3748 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: us-cert.gov
Researcher: Sam Thomas
Organization: Zero Day Initiative
Status: Confirmed

CVE: CVE-2006-5581 (🔍)
GCVE (CVE): GCVE-0-2006-5581
GCVE (VulDB): GCVE-100-33791

OVAL: 🔍

CERT: 🔍
X-Force: 30604
SecurityFocus: 21546 - Microsoft Internet Explorer DHTML Script Function Remote Code Execution Vulnerability
Secunia: 23288
OSVDB: 30814 - Microsoft IE DHTML Script Function Memory Corruption
SecurityTracker: 1017373
Vulnerability Center: 13307 - [MS06-072] Microsoft Internet Explorer DHTML Script Function Memory Corruption, Medium

See also: 🔍

Entryinfo

Created: 03/12/2015 22:21
Updated: 06/15/2025 19:30
Changes: 03/12/2015 22:21 (69), 05/07/2019 12:41 (11), 01/16/2025 10:23 (18), 04/14/2025 00:42 (1), 06/15/2025 19:30 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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