---
id: "CVE-2026-119402"
page: "https://infrastack.ai/live/CVE-2026-119402"
kind: "vulnerability"
aliases: ["CVE-2026-119402"]
title: "Windows: Broadcast DVR service flaw lets a local user gain higher privileges"
severity: "high"
cvss: 7.0
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: [{"name": "Windows 10 1809", "fixed": ["10.0.17763.9487"], "affected": "< 10.0.17763.9487", "ecosystem": "microsoft"}, {"name": "Windows 10 21H2", "fixed": ["10.0.19044.7846"], "affected": "< 10.0.19044.7846", "ecosystem": "microsoft"}, {"name": "Windows 10 22H2", "fixed": ["10.0.19045.7846"], "affected": "< 10.0.19045.7846", "ecosystem": "microsoft"}, {"name": "Windows 11 23H2", "fixed": ["10.0.22631.7711"], "affected": "< 10.0.22631.7711", "ecosystem": "microsoft"}, {"name": "Windows 11 24H2", "fixed": ["10.0.26100.9974"], "affected": "< 10.0.26100.9974", "ecosystem": "microsoft"}, {"name": "Windows 11 25H2", "fixed": ["10.0.26200.9974"], "affected": "< 10.0.26200.9974", "ecosystem": "microsoft"}, {"name": "Windows 11 26H2", "fixed": ["10.0.26300.9974"], "affected": "< 10.0.26300.9974", "ecosystem": "microsoft"}, {"name": "Windows 11 26H1", "fixed": ["10.0.28000.3501"], "affected": "< 10.0.28000.3501", "ecosystem": "microsoft"}]
ecosystems: []
tags: ["infrastructure", "local-privilege-escalation", "use-after-free", "windows"]
not_affected_if: ["unknown"]
published_at: "2026-11-10T19:19:55+00:00"
first_seen_at: "2026-11-10T19:24:57+00:00"
updated_at: "2026-11-10T22:53:30+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119402", "first_seen_at": "2026-11-10T19:24:57+00:00"}, {"source": "analyst", "url": "https://cveawg.mitre.org/api/cve/CVE-2026-119402", "first_seen_at": "2026-11-10T22:53:30+00:00", "cites": ["https://cveawg.mitre.org/api/cve/CVE-2026-119402", "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-119402"]}]
exploit_sources: []
---

# Windows: Broadcast DVR service flaw lets a local user gain higher privileges

Link for people: https://infrastack.ai/live/CVE-2026-119402 (this .md is for agents)

A use-after-free bug in the Windows Broadcast DVR User Service lets an authorized local user elevate their privileges. An attacker who already has a logon on the machine could gain administrator or SYSTEM-level control.

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

## Affected

- microsoft:Windows 10 1809 affected < 10.0.17763.9487 fixed 10.0.17763.9487
- microsoft:Windows 10 21H2 affected < 10.0.19044.7846 fixed 10.0.19044.7846
- microsoft:Windows 10 22H2 affected < 10.0.19045.7846 fixed 10.0.19045.7846
- microsoft:Windows 11 23H2 affected < 10.0.22631.7711 fixed 10.0.22631.7711
- microsoft:Windows 11 24H2 affected < 10.0.26100.9974 fixed 10.0.26100.9974
- microsoft:Windows 11 25H2 affected < 10.0.26200.9974 fixed 10.0.26200.9974
- microsoft:Windows 11 26H2 affected < 10.0.26300.9974 fixed 10.0.26300.9974
- microsoft:Windows 11 26H1 affected < 10.0.28000.3501 fixed 10.0.28000.3501

## How to check

Run winver or PowerShell [System.Environment]::OSVersion.Version (or cmd 'ver') and compare the full build.revision with the fixed builds; below the fixed build means exposed. Optional: Get-Service BcastDVRUserService_* shows whether the per-user service exists.

## Fix

Install the November 2026 Windows cumulative update that brings the OS build to: Win10 1809 10.0.17763.9487; Win10 21H2 10.0.19044.7846; Win10 22H2 10.0.19045.7846; Win11 23H2 10.0.22631.7711; Win11 24H2 10.0.26100.9974; Win11 25H2 10.0.26200.9974; Win11 26H2 10.0.26300.9974; Win11 26H1 10.0.28000.3501. KB numbers not read.

## Timeline

- 2026-11-10T19:24:57+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-119402
- 2026-11-10T22:53:30+00:00 analyst https://cveawg.mitre.org/api/cve/CVE-2026-119402 — Read Microsoft's CNA CVE record (affected builds, fixed builds, CVSS 7.0 AV:L/AC:H; CISA SSVC exploitation none). MSRC page itself unreadable by tools, so KB numbers and default-service state not confirmed; sibling CVEs (119401, 119403) share the same description. Not exploited, no PoC found.

## Documents

- [advisory] Microsoft CNA CVE record CVE-2026-119402 (Windows Broadcast DVR User Service EoP) https://cveawg.mitre.org/api/cve/CVE-2026-119402
- [fix] MSRC Update Guide: CVE-2026-119402 (referenced by Microsoft's CVE record; page not readable by tool) https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-119402

## From the sources

Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.

---

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