CVE-2001-1443

NONECVSS 0.0

0.0

KTH Kerberos IV and Kerberos V (Heimdal) for Telnet clients do not encrypt connections if the server does not support the requested encryption, which allows remote attackers to read communications via a man-in-the-middle attack.

CVSS v3: —
EG Score: —
EPSS: 78.2%
KEV: Not listed

Published

August 27, 2001

Last Modified

April 16, 2026

References (6)

cve@mitrehttp://josefsson.org/ktelnet/kerberos-telnet.html
cve@mitrehttp://www.kb.cert.org/vuls/id/390280
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/10640
af854a3a-2127-422b-91ae-364da2661108http://josefsson.org/ktelnet/kerberos-telnet.html
af854a3a-2127-422b-91ae-364da2661108http://www.kb.cert.org/vuls/id/390280
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/10640

Data Freshness Timeline

(refreshed 14× 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.

2026-05-29 13:40 UTCepss_batch
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2026-05-18 21:29 UTCepss_batch

Frequently asked(4)

What is CVE-2001-1443?

CVE-2001-1443 is a none vulnerability published on August 27, 2001. KTH Kerberos IV and Kerberos V (Heimdal) for Telnet clients do not encrypt connections if the server does not support the requested encryption, which allows remote attackers to read communications via a man-in-the-middle attack.

When was CVE-2001-1443 disclosed?

CVE-2001-1443 was first published in the National Vulnerability Database on August 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-2001-1443 actively exploited?

CVE-2001-1443 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 78.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2001-1443?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2001-1443, 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-2001-1443

📅 Published

🔄 Last Modified

🔗 References (6)