CVE-1999-1223

NONECVSS 0.0

0.0

IIS 3.0 allows remote attackers to cause a denial of service via a request to an ASP page in which the URL contains a large number of / (forward slash) characters.

CVSS v3: —
EG Score: —
EPSS: 94.8%
KEV: Not listed

Published

December 31, 1999

Last Modified

April 16, 2026

References (4)

cve@mitrehttp://support.microsoft.com/support/kb/articles/q187/5/03.asp
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/3892
af854a3a-2127-422b-91ae-364da2661108http://support.microsoft.com/support/kb/articles/q187/5/03.asp
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/3892

Data Freshness Timeline

(refreshed 11× 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
2026-05-28 13:42 UTCepss_batch
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Frequently asked(4)

What is CVE-1999-1223?

CVE-1999-1223 is a none vulnerability published on December 31, 1999. IIS 3.0 allows remote attackers to cause a denial of service via a request to an ASP page in which the URL contains a large number of / (forward slash) characters.

When was CVE-1999-1223 disclosed?

CVE-1999-1223 was first published in the National Vulnerability Database on December 31, 1999, 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-1999-1223 actively exploited?

CVE-1999-1223 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-1999-1223?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-1999-1223, 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.

Dependency Blast Radius

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CVE-1999-1223

📅 Published

🔄 Last Modified

🔗 References (4)