CVE-2023-21739 — Windows Bluetooth Driver Elevation of Privilege Vulnerability

Executive Summary

None

Overview

7

CVSS HIGH

Important

MS Severity

Not Exploited

MS Exploit Status

Less Likely

MS Exploit Likelihood

Category Elevation of Privilege

Weakness CWE-591: Sensitive Data Storage in Improperly Locked Memory

Released Jan 10 2023

Last Updated Jan 10 2023

Publicly Disclosed No

CISA KEV Not Listed

Known Exploits None Known

EPSS Score 0.00564 — 0.44056 percentile

NVD CVSS 7 HIGH — matches MSRC

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

ATTACK VECTOR

Local

ATTACK COMPLEXITY

High

PRIVILEGES REQUIRED

Low

USER INTERACTION

None

SCOPE

Unchanged

CONFIDENTIALITY

High

INTEGRITY

High

AVAILABILITY

High

EXPLOIT CODE MATURITY

Unproven

REMEDIATION LEVEL

Official Fix

REPORT CONFIDENCE

Confirmed

Temporal Score: 6.1

EPSS Score

0.00564

probability of exploitation in the next 30 days

0.44056 percentile - updated 2026-08-14

View on FIRST.org

Affected Products

20 affected products

Product	KB Article	Severity	Impact	Restart Required
Windows 10 for 32-bit Systems	`5022297 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 for x64-based Systems	`5022297 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1607 for 32-bit Systems	`5022289 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1607 for x64-based Systems	`5022289 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1809 for 32-bit Systems	`5022286 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1809 for ARM64-based Systems	`5022286 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1809 for x64-based Systems	`5022286 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 20H2 for 32-bit Systems	`5022282 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 20H2 for ARM64-based Systems	`5022282 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 21H2 for 32-bit Systems	`5022282 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 21H2 for ARM64-based Systems	`5022282 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 21H2 for x64-based Systems	`5022282 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 22H2 for 32-bit Systems	`5022282 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 22H2 for ARM64-based Systems	`5022282 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 22H2 for x64-based Systems	`5022282 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 11 version 21H2 for ARM64-based Systems	`5022287 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 11 version 21H2 for x64-based Systems	`5022287 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 11 Version 22H2 for ARM64-based Systems	`5022303 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 11 Version 22H2 for x64-based Systems	`5022303 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 8.1 for 32-bit systems 5022352 (Monthly Rollup) 5022346 (Security Only) Important Elevation of Privilege 5021294 Base: 7.0 Temporal: 6.1 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.3.9600.20778 Yes 5022352 5022346 Windows 8.1 for x64-based systems 5022352 (Monthly Rollup) 5022346 (Security Only) Important Elevation of Privilege 5021294 Base: 7.0 Temporal: 6.1 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.3.9600.20778 Yes 5022352 5022346 Windows RT 8.1	`5022346 (Security Only)`	Important	Elevation of Privilege	Yes

Patches

7 patches

Article	Type	Restart
`5022297`	Security Update	Yes
`5022289`	Security Update	Yes
`5022286`	Security Update	Yes
`5022282`	Security Update	Yes
`5022287`	Security Update	Yes
`5022303`	Security Update	Yes
`5022346`	Security Only	Yes

Exploits & PoC

1 public PoC

Unverified third-party code

Public proof-of-concept repositories aggregated from PoC-in-GitHub. They are not reviewed and may be incomplete, non-functional, or malicious — inspect the code before running anything.

Repository	Stars	Published	Description
gmh5225/CVE-2023-21739	1	2023-01-20	Windows Bluetooth Driver Elevation of Privilege Vulnerability. CVE project by @Sn0wAlice

Detection Rules

No public Sigma or Nuclei detection rule has been mapped to this CVE yet. Coverage is concentrated on exploited / high-profile vulnerabilities; check SigmaHQ for updates.

Acknowledgments

ziming zhang

References

MSRC Advisory MITRE NVD