CVE-2001-1021

NONECVSS 0.0Weaponized

0.0

Buffer overflows in WS_FTP 2.02 allow remote attackers to execute arbitrary code via long arguments to (1) DELE, (2) MDTM, (3) MLST, (4) MKD, (5) RMD, (6) RNFR, (7) RNTO, (8) SIZE, (9) STAT, (10) XMKD, or (11) XRMD.

CVSS v3: —
EG Score: —
EPSS: 98.3%
KEV: Not listed

Published

July 26, 2001

Last Modified

April 16, 2026

References (6)

cve@mitrehttp://archives.neohapsis.com/archives/bugtraq/2001-07/0610.html
cve@mitrehttp://www.ipswitch.com/Support/WS_FTP-Server/patch-upgrades.html
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/6911
af854a3a-2127-422b-91ae-364da2661108http://archives.neohapsis.com/archives/bugtraq/2001-07/0610.html
af854a3a-2127-422b-91ae-364da2661108http://www.ipswitch.com/Support/WS_FTP-Server/patch-upgrades.html
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/6911

Data Freshness Timeline

(refreshed 13× in last 7d / 18× 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
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Publicly available exploits

(2 references)

Working exploit code is in the public domain (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-1158✓ verified
First seen Nov 29, 2004
Ipswitch WS_FTP Server 5.03 - 'RNFR' Buffer Overflow
Open source ↗
Exploit-DBEDB-21036✓ verified
First seen Jul 25, 2001
Ipswitch WS_FTP Server 2.0 - Anonymous Multiple FTP Command Buffer Overflows
Open source ↗

Frequently asked(4)

What is CVE-2001-1021?

CVE-2001-1021 is a none vulnerability published on July 26, 2001. Buffer overflows in WS_FTP 2.02 allow remote attackers to execute arbitrary code via long arguments to (1) DELE, (2) MDTM, (3) MLST, (4) MKD, (5) RMD, (6) RNFR, (7) RNTO, (8) SIZE, (9) STAT, (10) XMKD, or (11) XRMD.

When was CVE-2001-1021 disclosed?

CVE-2001-1021 was first published in the National Vulnerability Database on July 26, 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-2001-1021 actively exploited?

CVE-2001-1021 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2001-1021?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2001-1021, 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-2001-1021

📅 Published

🔄 Last Modified

🔗 References (6)