CVE-2004-1491

NONECVSS 0.0Weaponized

0.0

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.

CVSS v3: —
EG Score: —
EPSS: 96.4%
KEV: Not listed

Published

December 31, 2004

Last Modified

April 16, 2026

References (14)

cve@mitrehttp://lists.suse.com/archive/suse-security-announce/2005-Mar/0007.html
cve@mitrehttp://secunia.com/advisories/13447/
cve@mitrehttp://www.gentoo.org/security/en/glsa/glsa-200502-17.xml
cve@mitrehttp://www.opera.com/linux/changelogs/754u2/
cve@mitrehttp://www.securityfocus.com/bid/11901
cve@mitrehttp://www.zone-h.org/advisories/read/id=6503
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/18457
af854a3a-2127-422b-91ae-364da2661108http://lists.suse.com/archive/suse-security-announce/2005-Mar/0007.html
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/13447/
af854a3a-2127-422b-91ae-364da2661108http://www.gentoo.org/security/en/glsa/glsa-200502-17.xml
af854a3a-2127-422b-91ae-364da2661108http://www.opera.com/linux/changelogs/754u2/
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/11901
af854a3a-2127-422b-91ae-364da2661108http://www.zone-h.org/advisories/read/id=6503
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/18457

Data Freshness Timeline

(refreshed 12× in last 7d / 17× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-29 13:40 UTCepss_batch
2026-05-29 13:40 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
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2026-05-27 13:37 UTCepss_batch
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2026-05-26 07:16 UTCepss_batch
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2026-05-24 16:42 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-20 22:36 UTCepss_batch
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2026-05-18 21:29 UTCepss_batch
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Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-24828✓ verified
First seen Dec 13, 2004
Opera Web Browser 7.54 - 'KDE KFMCLIENT' Remote Command Execution
Open source ↗

Frequently asked(4)

What is CVE-2004-1491?

CVE-2004-1491 is a none vulnerability published on December 31, 2004. 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.

When was CVE-2004-1491 disclosed?

CVE-2004-1491 was first published in the National Vulnerability Database on December 31, 2004, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2004-1491 actively exploited?

CVE-2004-1491 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 96.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2004-1491?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2004-1491, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2004-1491

📅 Published

🔄 Last Modified

🔗 References (14)