Microsoft Internet Explorer up to 6 Exception memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Microsoft Internet Explorer up to 6. This issue affects some unknown processing of the component Exception Handler. The manipulation results in memory corruption. This vulnerability is reported as CVE-2006-2218. The attack can be launched remotely. No exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Microsoft Internet Explorer up to 6 (Web Browser). It has been classified as critical. Affected is an unknown part of the component Exception Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Unspecified vulnerability in Internet Explorer 6.0 on Microsoft Windows XP SP2 allows remote attackers to execute arbitrary code via "exceptional conditions" that trigger memory corruption, as demonstrated using an exception handler and nested object tags, a variant of CVE-2006-1992.

The weakness was disclosed 06/13/2006 by Andreas Sandblad with Secunia Research as MS06-021 as confirmed bulletin (Technet). The advisory is shared for download at microsoft.com. This vulnerability is traded as CVE-2006-2218 since 05/05/2006. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 21685 (MS06-021: Cumulative Security Update for Internet Explorer (916281)), 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 100035 (Cumulative Security Update for Internet Explorer Missing (MS06-021)).

Applying the patch MS06-021 is able to eliminate this problem. The bugfix is ready for download at windowsupdate.microsoft.com. A possible mitigation has been published before and not just after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 16031.

The vulnerability is also documented in the databases at X-Force (26762), Tenable (21685), SecurityFocus (BID 17820†), OSVDB (27475†) and Secunia (SA19762†). The entries VDB-2126, VDB-2186, VDB-2289 and VDB-2290 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 21685
Nessus Name: MS06-021: Cumulative Security Update for Internet Explorer (916281)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍
Patch: MS06-021

Snort ID: 16031
McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

04/25/2006 🔍
05/03/2006 +8 days 🔍
05/05/2006 +2 days 🔍
05/05/2006 +0 days 🔍
05/14/2006 +9 days 🔍
06/13/2006 +30 days 🔍
06/13/2006 +0 days 🔍
06/14/2006 +1 days 🔍
07/24/2006 +40 days 🔍
04/13/2011 +1723 days 🔍
05/23/2011 +40 days 🔍
06/22/2025 +5144 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS06-021
Researcher: Andreas Sandblad
Organization: Secunia Research
Status: Confirmed

CVE: CVE-2006-2218 (🔍)
GCVE (CVE): GCVE-0-2006-2218
GCVE (VulDB): GCVE-100-2292

OVAL: 🔍

CERT: 🔍
X-Force: 26762
SecurityFocus: 17820 - Microsoft Internet Explorer Unspecified OBJECT Tag Memory Corruption Variant Vulnerability
Secunia: 19762 - Internet Explorer Exception Handling Memory Corruption Vulnerability, Highly Critical
OSVDB: 27475 - Microsoft IE Nested Objects Exception Handler Unspecified Memory Corruption
SecurityTracker: 1016291 - Microsoft Internet Explorer Multiple Memory and Access Control Errors Let Remote Users Execute Arbitrary Code
Vulnerability Center: 31533 - [MS06-021] Internet Explorer Code Execution via Unspecified OBJECT Tag Memory Corruption, Medium
Vupen: ADV-2006-2319

See also: 🔍

Entryinfo

Created: 06/14/2006 12:34
Updated: 06/22/2025 05:23
Changes: 06/14/2006 12:34 (85), 04/07/2017 18:25 (13), 03/13/2021 07:55 (2), 01/20/2025 08:12 (15), 06/22/2025 05:23 (2)
Complete: 🔍
Cache ID: 216:D61:103

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