CVE-2005-4840
The Outlook Express Address Book control, when using Internet Explorer 6, allows remote attackers...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2005-4840- CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2005-4840- Updated
- 2026-11-02
EUVDEUVD-2005-4832 No score
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.
- Record
EUVD-2005-4832- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-gggx-f55h-83w3 No score
The Outlook Express Address Book control, when using Internet Explorer 6, allows remote attackers...
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.
- Record
GHSA-gggx-f55h-83w3- Weakness
- CWE-119
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2005-4840 is a medium vulnerability (CVSS 4.3) in Microsoft Outlook Express Book Control, published December 31, 2005. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 11.5%, the 96th percentile. No source names a fixed version.
