CVE-2001-0334

HIGHNVD 7.57.5—Trending — 3 sources updated this weekElevated

7.5

FTP service in IIS 5.0 and earlier allows remote attackers to cause a denial of service via a wildcard sequence that generates a long string when it is expanded.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 96.8%
KEV: Not listed

Published

June 27, 2001

Last Modified

April 16, 2026

Advisory Details (2)

Auto-updated May 31, 2026

No patch confirmed yet.

generic

IBM X-Force Exchange

https://exchange.xforce.ibmcloud.com/vulnerabilities/6535

generic

Microsoft Security Bulletin MS01-026 - Critical | Microsoft Learn

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-026

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-131Incorrect Calculation of Buffer Size

Data Freshness Timeline

(refreshed 12× in last 7d / 20× 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.

2026-06-02 20:10 UTCepss_batch
2026-06-01 13:48 UTCepss_batch
2026-05-31 22:27 UTCepss_batch
2026-05-31 20:34 UTCEG score recompute
2026-05-31 20:34 UTCGHSA enrichment
2026-05-31 00:13 UTCepss_batch
2026-05-31 00:13 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
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:37 UTCepss_batch
2026-05-27 13:37 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-24 16:42 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-21 22:38 UTCepss_batch

Frequently asked(5)

What is CVE-2001-0334?

CVE-2001-0334 is a high vulnerability published on June 27, 2001. FTP service in IIS 5.0 and earlier allows remote attackers to cause a denial of service via a wildcard sequence that generates a long string when it is expanded.

When was CVE-2001-0334 disclosed?

CVE-2001-0334 was first published in the National Vulnerability Database on June 27, 2001, 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-2001-0334 actively exploited?

CVE-2001-0334 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 96.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2001-0334?

CVE-2001-0334 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2001-0334?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2001-0334, 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-2001-0334

📅 Published

🔄 Last Modified

📋 Advisory Details (2)