CVE-2004-0121

Exp

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.

Published: 2004-04-15 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2004-0121 is rated High Exploit Risk (74.2/100): CVSS High severity, with high exploitation likelihood (EPSS 44.18%, 98th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2004-0121

EDB-ID Source Kind Published Link
23796 exploit_db edb 2004-03-09 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2004-0121

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-07 51.47% 44.18% -7.29%
2 2025-04-20 38.56% 51.47% +12.91%
3 2025-04-18 — 38.56% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2004-0121

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2004-0121

Affected software / configurations for CVE-2004-0121

Vendor Product Version Raw CPE
microsoft office xp cpe:2.3:a:microsoft:office:xp:sp2:*:*:*:*:*:*
microsoft outlook 2002 cpe:2.3:a:microsoft:outlook:2002:sp2:*:*:*:*:*:*

References for CVE-2004-0121

URL Tags
http://marc.info/?l=bugtraq&m=107893704602842&w=2 Third Party Advisory
http://www.ciac.org/ciac/bulletins/o-096.shtml Broken Link
http://www.idefense.com/application/poi/display?id=79&type=vulnerabilities Broken Link Patch Vendor Advisory
http://www.kb.cert.org/vuls/id/305206 Mitigation Third Party Advisory US Government Resource
http://www.securityfocus.com/bid/9827 Broken Link Exploit Patch Third Party Advisory VDB Entry Vendor Advisory
http://www.us-cert.gov/cas/techalerts/TA04-070A.html Broken Link Third Party Advisory US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-009 Patch Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/15414 Third Party Advisory VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/15429 Third Party Advisory VDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A843 Broken Link
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