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CVE-2001-1444

Published: Apr 21, 2005Updated: Apr 16, 2026 Sources: CVE List NVDNVD-CWE-Other
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.3%
Top 33.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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.

CVSS Vector Breakdown

AV:NAC:LAu:NC:PI:PA:P
Exploitability
AV:NAccess Vector
Network
AC:LAccess Complexity
Low
Au:NAuthentication
None
Impact
C:PConfidentiality
Partial
I:PIntegrity
Partial
A:PAvailability
Partial
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Weaknesses

NVD-CWE-Other

Affected Products

n/an/a
kth kerberoskth
Mixed
Security Products / identity-access-mgmt
kthoss-projectSESecurity Productsaka kth kerberos, heimdal, kth kerberos 4

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

http://josefsson.org/ktelnet/kerberos-telnet.html
josefsson.org
https://exchange.xforce.ibmcloud.com/vulnerabilities/10640
exchange.xforce.ibmcloud.com
http://www.kb.cert.org/vuls/id/774587
kb.cert.org

Timeline

Published
Apr 21, 2005
Last Updated
Apr 16, 2026

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