Buffer overflow in Microsoft Internet Explorer

CVE-2005-4840

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.

Vulnerability class: Buffer Overflow

EPSS: 0.115 (95.6th percentile) — read the EPSS interpretation.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2005-4840?
CVE-2005-4840 is a vulnerability in Microsoft Internet Explorer, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2005-12-31.
Is CVE-2005-4840 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.