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CVE-2000-0834
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.
Published: Nov 14, 2000
Modified: Apr 16, 2026
CVSS Metrics
Affected Products (1)
| Vendor | Product | Version |
|---|---|---|
| microsoft | windows_2000 | * |
GitHub Security Advisory GHSA-4m4v-vqhc-mhjp
The Windows 2000 telnet client attempts to perform NTLM authentication by default, which allows...
References (8)
- http://www.atstake.com/research/advisories/2000/a091400-1.txt
- http://www.securityfocus.com/bid/1683 Exploit, Patch, Vendor Advisory
- 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 Exploit, Patch, Vendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-067
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5242
Risk Scores
CVSS Score
7.5 / 10
EPSS Score
34.05%
Top 3% most likely to be exploited
Threat Score
40.2 / 100
Data Sources
NVD
EPSS
GitHub