CVE-2004-0380

Critical

Description

The MHTML protocol handler in Microsoft Outlook Express 5.5 SP2 through Outlook Express 6 SP1 allows remote attackers to bypass domain restrictions and execute arbitrary code, as demonstrated on Internet Explorer using script in a compiled help (CHM) file that references the InfoTech Storage (ITS) protocol handlers such as (1) ms-its, (2) ms-itss, (3) its, or (4) mk:@MSITStore, aka the "MHTML URL Processing Vulnerability."

SeverityCritical

CVSS10.0

Exploit probability—

Product

Microsoft Outlook Express

PublishedMay 4, 2004

First seenMay 4, 2004

How to fix

Vendor advisories

docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-013

Affected products

Product	Affected versions	Fixed in
microsoft outlook_express	5.5, 6.0	—

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