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CVE-2026-69859— Windows USB Audio Class driver (usbaudio.sys) Elevation of Privilege Vulnerability

Quick assessment

Affected

Microsoft Windows 10 Version 1607

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Windows USB Audio Class driver是美国Microsoft公司的一款媒体设备驱动，定位于为Windows操作系统提供USB音频类设备的标准化支持。 Microsoft Windows USB Audio Class driver存在安全漏洞，该漏洞源于usbaudio.sys驱动程序中的检查时间到使用时间（TOCTOU）竞争条件，可能导致授权攻击者在本地提升权限。

CVSS 7.0 · High EPSS 0.20% · P10 Updated Oct 15, 2026

Possible ATT&CK Techniques 3 AI

T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing Application T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 20

Vendor	Product	Version Range	Status
Microsoft	Windows 10 Version 1607	`10.0.14393.0< 10.0.14393.9512`	affected
Microsoft	Windows 10 Version 1809	`10.0.17763.0< 10.0.17763.9245`	affected
Microsoft	Windows 10 Version 21H2	`10.0.19044.0< 10.0.19044.7725`	affected
Microsoft	Windows 10 Version 22H2	`10.0.19045.0< 10.0.19045.7725`	affected
Microsoft	Windows 11 version 23H2	`10.0.22631.0< 10.0.22631.7582`	affected
Microsoft	Windows 11 Version 23H2	`10.0.22631.0< 10.0.22631.7582`	affected
Microsoft	Windows 11 Version 24H2	`10.0.26100.0< 10.0.26100.9445`	affected
Microsoft	Windows 11 Version 25H2	`10.0.26200.0< 10.0.26200.9445`	affected
Microsoft	Windows 11 version 26H1	`10.0.28000.0< 10.0.28000.2954`	affected
Microsoft	Windows Server 2012	`6.2.9200.0< 6.2.9200.26349`	affected
Microsoft	Windows Server 2012 (Server Core installation)	`6.2.9200.0< 6.2.9200.26349`	affected
Microsoft	Windows Server 2012 R2	`6.3.9600.0< 6.3.9600.23398`	affected
Microsoft	Windows Server 2012 R2 (Server Core installation)	`6.3.9600.0< 6.3.9600.23398`	affected
Microsoft	Windows Server 2016	`10.0.14393.0< 10.0.14393.9512`	affected
Microsoft	Windows Server 2016 (Server Core installation)	`10.0.14393.0< 10.0.14393.9512`	affected
Microsoft	Windows Server 2019	`10.0.17763.0< 10.0.17763.9245`	affected
Microsoft	Windows Server 2019 (Server Core installation)	`10.0.17763.0< 10.0.17763.9245`	affected
Microsoft	Windows Server 2022	`10.0.20348.0< 10.0.20348.5622`	affected
Microsoft	Windows Server 2025	`10.0.26100.0< 10.0.26100.33438`	affected
Microsoft	Windows Server 2025 (Server Core installation)	`10.0.26100.0< 10.0.26100.33438`	affected

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I. Basic Information for CVE-2026-69859

Vulnerability Information

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Vulnerability Title

Windows USB Audio Class driver (usbaudio.sys) Elevation of Privilege Vulnerability

Source: CVE Program / CVE List V5

Vulnerability Description

Time-of-check time-of-use (toctou) race condition in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

检查时间与使用时间(TOCTOU)的竞争条件

Source: CVE Program / CVE List V5

Vulnerability Title

Microsoft Windows USB Audio Class driver 数字错误漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE
Microsoft	Windows 10 Version 1607	10.0.14393.0 ~ 10.0.14393.9512	-
Microsoft	Windows 10 Version 1809	10.0.17763.0 ~ 10.0.17763.9245	-
Microsoft	Windows 10 Version 21H2	10.0.19044.0 ~ 10.0.19044.7725	-
Microsoft	Windows 10 Version 22H2	10.0.19045.0 ~ 10.0.19045.7725	-
Microsoft	Windows 11 version 23H2	10.0.22631.0 ~ 10.0.22631.7582	-
Microsoft	Windows 11 Version 23H2	10.0.22631.0 ~ 10.0.22631.7582	-
Microsoft	Windows 11 Version 24H2	10.0.26100.0 ~ 10.0.26100.9445	-
Microsoft	Windows 11 Version 25H2	10.0.26200.0 ~ 10.0.26200.9445	-
Microsoft	Windows 11 version 26H1	10.0.28000.0 ~ 10.0.28000.2954	-
Microsoft	Windows Server 2012	6.2.9200.0 ~ 6.2.9200.26349	-
Microsoft	Windows Server 2012 (Server Core installation)	6.2.9200.0 ~ 6.2.9200.26349	-
Microsoft	Windows Server 2012 R2	6.3.9600.0 ~ 6.3.9600.23398	-
Microsoft	Windows Server 2012 R2 (Server Core installation)	6.3.9600.0 ~ 6.3.9600.23398	-
Microsoft	Windows Server 2016	10.0.14393.0 ~ 10.0.14393.9512	-
Microsoft	Windows Server 2016 (Server Core installation)	10.0.14393.0 ~ 10.0.14393.9512	-
Microsoft	Windows Server 2019	10.0.17763.0 ~ 10.0.17763.9245	-
Microsoft	Windows Server 2019 (Server Core installation)	10.0.17763.0 ~ 10.0.17763.9245	-
Microsoft	Windows Server 2022	10.0.20348.0 ~ 10.0.20348.5622	-
Microsoft	Windows Server 2025	10.0.26100.0 ~ 10.0.26100.33438	-
Microsoft	Windows Server 2025 (Server Core installation)	10.0.26100.0 ~ 10.0.26100.33438	-

II. Public POCs for CVE-2026-69859

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-69859

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Vendor Advisories for CVE-2026-69859 (1)

🔗 CVE-2026-69859 - Security Update Guide - Microsoft - Windows USB Audio Class driver (usbaudio.sys) Elevation of Privilege Vulnerability Read full article vendor-advisory patch

https://www.cve.org/CVERecord?id=CVE-2026-69859

Same Patch Batch · Microsoft · 2026-09-08 · 966 CVEs total

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Showing top 20 of 966 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1607

Same vendor: Microsoft

Same weakness: CWE-367