---
id: "CVE-2026-119893"
page: "https://infrastack.ai/live/CVE-2026-119893"
kind: "vulnerability"
aliases: ["CVE-2026-119893"]
title: "Windows Audio Service race condition lets a local user gain privileges"
severity: "high"
cvss: 7.0
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: [{"name": "Windows Audio Service", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "Windows 11 24H2", "fixed": ["10.0.26100.9974"], "affected": ">= 10.0.26100.0, < 10.0.26100.9974", "ecosystem": "vendor"}, {"name": "Windows 11 25H2", "fixed": ["10.0.26200.9974"], "affected": ">= 10.0.26200.0, < 10.0.26200.9974", "ecosystem": "vendor"}, {"name": "Windows 11 26H1", "fixed": ["10.0.28000.3501"], "affected": ">= 10.0.28000.0, < 10.0.28000.3501", "ecosystem": "vendor"}, {"name": "Windows 11 26H2", "fixed": ["10.0.26300.9974"], "affected": ">= 10.0.26300.0, < 10.0.26300.9974", "ecosystem": "vendor"}, {"name": "Windows Server 2025", "fixed": ["10.0.26100.33822"], "affected": ">= 10.0.26100.0, < 10.0.26100.33822", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["infrastructure", "local-privilege-escalation", "windows", "windows-11", "windows-server-2025"]
not_affected_if: ["no-local-untrusted-users"]
published_at: "2026-11-10T19:20:09+00:00"
first_seen_at: "2026-11-10T19:25:01+00:00"
updated_at: "2026-11-10T22:27:40+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119893", "first_seen_at": "2026-11-10T19:25:01+00:00"}, {"source": "analyst", "url": "https://app.opencve.io/cve/CVE-2026-119893", "first_seen_at": "2026-11-10T22:27:40+00:00", "cites": ["https://app.opencve.io/cve/CVE-2026-119893"]}]
exploit_sources: []
---

# Windows Audio Service race condition lets a local user gain privileges

Link for people: https://infrastack.ai/live/CVE-2026-119893 (this .md is for agents)

Race condition (CWE-362, also tagged CWE-416 use after free) in the Windows Audio Service lets an authorized local attacker elevate privileges. CVSS 7.0 (AV:L/AC:H/PR:L). No exploitation known; Microsoft's exploit-code maturity is Unproven.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Windows Audio Service affected range not listed fixed no fixed version listed
- vendor:Windows 11 24H2 affected >= 10.0.26100.0, < 10.0.26100.9974 fixed 10.0.26100.9974
- vendor:Windows 11 25H2 affected >= 10.0.26200.0, < 10.0.26200.9974 fixed 10.0.26200.9974
- vendor:Windows 11 26H1 affected >= 10.0.28000.0, < 10.0.28000.3501 fixed 10.0.28000.3501
- vendor:Windows 11 26H2 affected >= 10.0.26300.0, < 10.0.26300.9974 fixed 10.0.26300.9974
- vendor:Windows Server 2025 affected >= 10.0.26100.0, < 10.0.26100.33822 fixed 10.0.26100.33822

## How to check

Run winver or PowerShell (Get-ComputerInfo).OsBuildNumber / [System.Environment]::OSVersion.Version and compare the full build (e.g. 10.0.26100.xxxx) with the fixed builds; below the fixed build is exposed. Exploitation requires local code execution with low privileges.

## Fix

Install the November 2026 Windows cumulative update: Windows 11 24H2 >= 10.0.26100.9974, 25H2 >= 10.0.26200.9974, 26H1 >= 10.0.28000.3501, 26H2 >= 10.0.26300.9974, Windows Server 2025 >= 10.0.26100.33822 (per CNA record via OpenCVE; KB number not confirmed)

## Timeline

- 2026-11-10T19:25:01+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-119893
- 2026-11-10T22:27:40+00:00 analyst https://app.opencve.io/cve/CVE-2026-119893 — MSRC page is JS-only and unreadable here; builds/fix taken from the Microsoft CNA record via OpenCVE mirror, so nothing marked verified. No exploitation or PoC seen. KB numbers unknown; check MSRC page for them. Sibling Audio Service CVEs 119894/119895 are use-after-free.

## Documents

- [describes] OpenCVE: CVE-2026-119893 (mirror of Microsoft CNA record) https://app.opencve.io/cve/CVE-2026-119893

## From the sources

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Audio Service allows an authorized attacker to elevate privileges locally.

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_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_