CVE-2004-0380
highpriority · attend · 72EPSS 0.632 · 99 %ileexploit · functionalEUUSEPSS · scored 2026-10-27
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."
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (3)
Public proof-of-concept and weaponised exploit code.
- EDB-23400Microsoft Outlook Express 6.0 - '.MHTML' Forced File Execution (1)functional · exploit_db
- EDB-23401Microsoft Outlook Express 6.0 - MHTML Forced File Execution (2)functional · exploit_db
- EDB-23695Microsoft Internet Explorer 5.0.1 - ITS Protocol Zone Bypass (MS04-013)functional · exploit_db
affected products (3)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (28)
External citations — patches, advisories, analysis.
- http://secunia.com/advisories/10523enisa_euvd
- http://www.k-otik.net/bugtraq/02.18.InternetExplorer.phpenisa_euvd
- http://www.kb.cert.org/vuls/id/323070enisa_euvd
- http://www.securityfocus.com/archive/1/354447enisa_euvd
- http://www.securityfocus.com/archive/1/358913enisa_euvd
- http://www.securityfocus.com/bid/9105enisa_euvd
- http://www.securityfocus.com/bid/9658enisa_euvd
- http://www.us-cert.gov/cas/techalerts/TA04-104A.htmlenisa_euvd
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