CVE-2000-0834 in the critical feed json
The Windows 2000 telnet client attempts to perform NTLM authentication by default, which allows remote attackers to capture and replay the…
published 2000-11-14 25 y ago modified 2026-06-16 4 mo ago also EUVD-2000-0821
- cvss
- 7.5
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 39.6%
- EPSS 39.6% chance of exploitation in 30 days, percentile 98%
- public exploits
- 1
- Exploit-DB
Summary
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.
Patch / fix
- securityfocus.com/bid/1683 advisory
Timeline
- First public exploit (EDB-20222)
- Published
Exploit prediction
39.61% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-20222 Microsoft Windows Server 2000 - 'telnet.exe' NTLM Authentication remote, 2000-08-14
- securityfocus.com http://www.securityfocus.com/bid/1683 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
References
-
securityfocus.com
/bid/1683
vdb-entry, exploit, patch, vendor-advisory
-
atstake.com
/research/advisories/2000/a091400-1.txt
vendor-advisory
-
docs.microsoft.com
/en-us/security-updates/securitybulletins/2000/ms00-067
vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/5242
vdb-entry
Sources
- CVE List CVE-2000-0834
- NVD CVE-2000-0834
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