CVE-2000-0834 EXPLOIT
7.5
HIGH · CVSS 2.0 · EPSS 39.6% (pctl 99)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 7.5 (HIGH, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| EPSS | 39.61% — more likely to be exploited than 99% of all CVEs |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2000-11-14 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| microsoft | windows 2000 |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Microsoft Windows Server 2000 - 'telnet.exe' NTLM Authentication | 2000-08-14 |
References
- http://www.atstake.com/research/advisories/2000/a091400-1.txt
- http://www.securityfocus.com/bid/1683
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-067
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5242
- http://www.atstake.com/research/advisories/2000/a091400-1.txt
- http://www.securityfocus.com/bid/1683
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-067
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5242
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