CVE-2001-1444

high

Description

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.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/10640

https://euvd.enisa.europa.eu/vulnerability/EUVD-2001-1424

http://www.kb.cert.org/vuls/id/774587

http://josefsson.org/ktelnet/kerberos-telnet.html

Details

Source: Mitre, NVD

Published: 2001-08-27

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 7.4

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: High

EPSS

EPSS: 0.00679