CVE-2001-1444 json
The Kerberos Telnet protocol, as implemented by KTH Kerberos IV and Kerberos V (Heimdal), does not encrypt authentication and encryption op…
published 2001-08-27 25 y ago modified 2026-06-16 4 mo ago also EUVD-2001-1424
- cvss
- 7.5
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 70%
- public exploits
- 0
- none known
Summary
The Kerberos Telnet protocol, as implemented by KTH Kerberos IV and Kerberos V (Heimdal), does not encrypt authentication and encryption options sent from the server, which allows remote attackers to downgrade authentication and encryption mechanisms via a man-in-the-middle attack.
Exploit prediction
1.30% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- josefsson.org http://josefsson.org/ktelnet/kerberos-telnet.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
References
-
josefsson.org
/ktelnet/kerberos-telnet.html
exploit
-
exchange.xforce.ibmcloud.com
/vulnerabilities/10640
vdb-entry
-
kb.cert.org
/vuls/id/774587
third-party-advisory, us-government-resource
Sources
- CVE List CVE-2001-1444
- NVD CVE-2001-1444
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.