CVE-2004-0121

Argument injection vulnerability in Microsoft Outlook 2002 does not sufficiently filter...

7.5 HighPublic exploit

Argument injection vulnerability in Microsoft Outlook 2002 does not sufficiently filter parameters of mailto: URLs when using them as arguments when calling OUTLOOK.EXE, which allows remote attackers to use script code in the Local Machine zone and execute arbitrary programs.

Exploit likelihood

47.7%Up 6.8 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2004-0121
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness: CWE-88
Updated: 2026-11-02

CVE List No score

Record: CVE-2004-0121
Updated: 2026-11-02

EUVDEUVD-2004-0121 No score

Record: EUVD-2004-0121
Updated: 2026-11-03

GitHub AdvisoriesGHSA-88qv-6q9j-fhvv No score

Argument injection vulnerability in Microsoft Outlook 2002 does not sufficiently filter...

Record: GHSA-88qv-6q9j-fhvv
Weakness: CWE-88
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Microsoft Outlook 2002 - 'Mailto' Quoting Zone Bypass	2004-03-09

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2004-0121 is a high vulnerability (CVSS 7.5) in Microsoft Outlook, published April 15, 2004. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 47.7%, the 98th percentile. No source names a fixed version.

References

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