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Fencer Vulns
high 7.6

CVE-2004-0486 json

HelpViewer in Mac OS X 10.3.3 and 10.2.8 processes scripts that it did not initiate, which can allow attackers to execute arbitrary code, a…

published 2004-05-28 22 y ago modified 2026-06-16 4 mo ago also EUVD-2004-0485

cvss
7.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
9.7%
EPSS 9.7% chance of exploitation in 30 days, percentile 95%
public exploits
1
Exploit-DB

Summary

HelpViewer in Mac OS X 10.3.3 and 10.2.8 processes scripts that it did not initiate, which can allow attackers to execute arbitrary code, an issue that was originally reported as a directory traversal vulnerability in the Safari web browser using the runscript parameter in a help: URI handler.

Patch / fix

Timeline

  1. First public exploit (EDB-24121)
  2. Published

Exploit prediction

9.66% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-24121 Apple Mac OSX 10.3.x - Help Protocol Remote Code Execution remote, 2004-05-17
  • securityfocus.com http://www.securityfocus.com/bid/10356 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.6 AV:N/AC:H/Au:N/C:C/I:C/A:C

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.