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Fencer Vulns
high 7.5

CVE-2004-0121 in the critical feed json

Argument injection vulnerability in Microsoft Outlook 2002 does not sufficiently filter parameters of mailto: URLs when using them as argum…

published 2004-04-15 22 y ago modified 2026-06-16 4 mo ago also EUVD-2004-0121

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
47.7%
EPSS 47.7% chance of exploitation in 30 days, percentile 98%
public exploits
1
Exploit-DB

Summary

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.

Patch / fix

Timeline

  1. First public exploit (EDB-23796)
  2. Published

Exploit prediction

47.68% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-23796 Microsoft Outlook 2002 - 'Mailto' Quoting Zone Bypass remote, 2004-03-09
  • securityfocus.com http://www.securityfocus.com/bid/9827 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-88 Improper Neutralization of Argument Delimiters in a Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.