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Case File

CVE-2004-0380

HIGH · CVSS 10 EPSS 63.25%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2004-05-04 · Last synced 2026-08-04

Field Assessment

AI analysis pending.

CVE
CVE-2004-0380
Severity
HIGH
CVSS
10
EPSS
63.25%
Microsoft

Original Filing — NVD 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."