CVE-2004-1134

NONECVSS 0.0Weaponized

0.0

Buffer overflow in the Microsoft W3Who ISAPI (w3who.dll) allows remote attackers to cause a denial of service and possibly execute arbitrary code via a long query string.

CVSS v3: —
EG Score: —
EPSS: 99.4%
KEV: Not listed

Published

January 10, 2005

Last Modified

April 16, 2026

References (6)

cve@mitrehttp://marc.info/?l=full-disclosure&m=110234486823233&w=2
cve@mitrehttp://www.exaprobe.com/labs/advisories/esa-2004-1206.html
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/18377
af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=full-disclosure&m=110234486823233&w=2
af854a3a-2127-422b-91ae-364da2661108http://www.exaprobe.com/labs/advisories/esa-2004-1206.html
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/18377

Data Freshness Timeline

(refreshed 8× in last 7d / 12× 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
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:37 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-20 22:36 UTCepss_batch
2026-05-18 21:29 UTCepss_batch
2026-05-18 21:29 UTCepss_batch

Publicly available exploits

(2 references)

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

Exploit-DBEDB-16354✓ verified
First seen Jul 7, 2010
Microsoft IIS - ISAPI 'w3who.dll' Query String Overflow (Metasploit)
Open source ↗
Metasploitexploit/windows/isapi/w3who_query✓ verified
First seen Dec 6, 2004
Microsoft IIS ISAPI w3who.dll Query String Overflow
Open source ↗

Frequently asked(4)

What is CVE-2004-1134?

CVE-2004-1134 is a none vulnerability published on January 10, 2005. Buffer overflow in the Microsoft W3Who ISAPI (w3who.dll) allows remote attackers to cause a denial of service and possibly execute arbitrary code via a long query string.

When was CVE-2004-1134 disclosed?

CVE-2004-1134 was first published in the National Vulnerability Database on January 10, 2005, 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-2004-1134 actively exploited?

CVE-2004-1134 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2004-1134?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2004-1134, 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-2004-1134

📅 Published

🔄 Last Modified

🔗 References (6)