Back
CVE-2000-0834
The Windows 2000 telnet client attempts to perform NTLM authentication by default, which allows remote attackers to capture and replay the…
High7.5EPSS 39.6%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 39.6% · top 1.4% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (4)
- A091400-1 (opens in a new tab)vendor-advisoryx_refsource_ATSTAKEx_transferred
- win2k-telnet-ntlm-authentication(5242) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- MS00-067 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- 1683 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .