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CVE-2001-1444

19
FAUCET Score

CVE-2001-1444 describes a vulnerability in the Kerberos Telnet protocol, specifically affecting KTH Kerberos IV and Kerberos V (Heimdal). The flaw allows remote attackers to downgrade authentication and encryption mechanisms through a man-in-the-middle attack because the server does not encrypt these options. Rated with a CVSS score of 7.5 (HIGH), this vulnerability has a low attack complexity and could lead to partial compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit, Nuclei, or ExploitDB, and it has received no community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4CPE matchmatch criteria
cpe:2.3:a:kth:kth_kerberos:4:*:*:*:*:*:*:*
5CPE matchmatch criteria
cpe:2.3:a:kth:kth_kerberos:5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.30%
Probability of exploitation in next 30 days
EPSS Percentile
67.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0130 is in the 47th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

josefsson.org / ktelnet/kerberos-telnet.html
Exploit
exchange.xforce.ibmcloud.com / vulnerabilities/10640
kb.cert.org / vuls/id/774587
Third Party AdvisoryUS Government Resource