Microsoft Outlook Express Book Control Address Book memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Microsoft Outlook Express Book Control (Mail Client Software) (affected version not known). It has been rated as problematic. Affected by this issue is some unknown functionality of the component Address Book. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. Impacted is availability. CVE summarizes:

The Outlook Express Address Book control, when using Internet Explorer 6, allows remote attackers to cause a denial of service (NULL dereference and browser crash) by creating the OutlookExpress.AddressBook COM object, which is not intended for use within Internet Explorer.

The weakness was disclosed 07/03/2006 by Hdm (Website). The advisory is available at This vulnerability is handled as CVE-2005-4840 since 06/07/2007. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but an exploit is available.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept. The exploit is available at

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at X-Force (34755). The entries 28147, 28146, 28145 and 28144 are pretty similar.





CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍



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Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

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

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfoedit

Threat: 🔍
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Recommended: no mitigation known
Status: 🔍

Exploit Delay Time: 🔍


12/31/2005 🔍
07/02/2006 +183 days 🔍
07/03/2006 +0 days 🔍
07/03/2006 +0 days 🔍
06/07/2007 +339 days 🔍
03/12/2015 +2835 days 🔍
07/31/2017 +872 days 🔍



Researcher: Hdm
Status: Not defined

CVE: CVE-2005-4840 (🔍)
X-Force: 34755 - Microsoft Internet Explorer Outlook Express Address Book object denial of service
OSVDB: 26836 - Microsoft IE OutlookExpress.AddressBook COM Object NULL Dereference

scip Labs:
See also: 🔍


Created: 03/12/2015 11:11 AM
Updated: 07/31/2017 09:01 AM
Changes: (8) vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai advisory_person_nickname exploit_url
Complete: 🔍


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