CVE-2004-0978

Critical

Description

Heap-based buffer overflow in the Hrtbeat.ocx (Heartbeat) ActiveX control for Internet Explorer 5.01 through 6, when users who visit online gaming sites that are associated with MSN, allows remote attackers to execute arbitrary code via the SetupData parameter.

SeverityCritical

CVSS10.0

Exploit probability—

Product

Microsoft Internet Explorer

PublishedFeb 9, 2005

First seenFeb 9, 2005

How to fix

Vendor advisories

docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-038

Affected products

Product	Affected versions	Fixed in
microsoft internet_explorer	5.01, 5.5, 6	—

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