CVE-2000-0834

High CVSS 7.5

Published 2000-11-14 · last changed 2026-06-16

The fix

We hold no Microsoft remediation data for CVE-2000-0834, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

The Windows 2000 telnet client attempts to perform NTLM authentication by default, which allows remote attackers to capture and replay the NTLM challenge/response via a telnet:// URL that points to the malicious server, aka the "Windows 2000 Telnet Client NTLM Authentication" vulnerability.

Sources

NVD record for CVE-2000-0834

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