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Fencer Vulns
medium 5.0

CVE-2004-1491 json

Opera 7.54 and earlier uses kfmclient exec to handle unknown MIME types, which allows remote attackers to execute arbitrary code via a shor…

published 2004-12-31 21 y ago modified 2026-06-16 4 mo ago also EUVD-2004-1485

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
12.6%
EPSS 12.6% chance of exploitation in 30 days, percentile 96%
public exploits
1
Exploit-DB

Summary

Opera 7.54 and earlier uses kfmclient exec to handle unknown MIME types, which allows remote attackers to execute arbitrary code via a shortcut or launcher that contains an Exec entry.

Patch / fix

Timeline

  1. First public exploit (EDB-24828)
  2. Published

Exploit prediction

12.56% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-24828 Opera Web Browser 7.54 - 'KDE KFMCLIENT' Remote Command Execution dos, 2004-12-13

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

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.

CPEs and fixed versions use Anchore's correction of NVD's data: Fix old broken CPEs.