---
id: "CVE-2026-95871"
page: "https://infrastack.ai/live/CVE-2026-95871"
kind: "vulnerability"
aliases: ["CVE-2026-95871"]
title: "Windows Broadcast DVR service heap overflow 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": "vendor"}, {"name": "Windows 10 21H2", "fixed": ["10.0.19044.7846"], "affected": "< 10.0.19044.7846", "ecosystem": "vendor"}, {"name": "Windows 10 22H2", "fixed": ["10.0.19045.7846"], "affected": "< 10.0.19045.7846", "ecosystem": "vendor"}, {"name": "Windows 11 23H2", "fixed": ["10.0.22631.7711"], "affected": "< 10.0.22631.7711", "ecosystem": "vendor"}, {"name": "Windows 11 24H2", "fixed": ["10.0.26100.9974"], "affected": "< 10.0.26100.9974", "ecosystem": "vendor"}, {"name": "Windows 11 25H2", "fixed": ["10.0.26200.9974"], "affected": "< 10.0.26200.9974", "ecosystem": "vendor"}, {"name": "Windows 11 26H1", "fixed": ["10.0.28000.3501"], "affected": "< 10.0.28000.3501", "ecosystem": "vendor"}, {"name": "Windows 11 26H2", "fixed": ["10.0.26300.9974"], "affected": "< 10.0.26300.9974", "ecosystem": "vendor"}]
ecosystems: []
tags: ["auth-required", "infrastructure", "local-privilege-escalation", "windows"]
not_affected_if: ["no-local-accounts", "patched-build"]
published_at: "2026-11-10T19:21:39+00:00"
first_seen_at: "2026-11-10T19:25:22+00:00"
updated_at: "2026-11-10T20:35:01+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-95871", "first_seen_at": "2026-11-10T19:25:22+00:00"}, {"source": "analyst", "url": "https://app.opencve.io/cve/CVE-2026-95871", "first_seen_at": "2026-11-10T20:35:01+00:00", "cites": ["https://app.opencve.io/cve/CVE-2026-95871"]}]
exploit_sources: []
---

# Windows Broadcast DVR service heap overflow lets a local user gain higher privileges

Link for people: https://infrastack.ai/live/CVE-2026-95871 (this .md is for agents)

A heap-based buffer overflow in the Windows Broadcast DVR User Service lets an authorized local user elevate their privileges. An attacker who already has a low-privilege account on the machine can gain higher rights, such as SYSTEM.

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

## Affected

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

## How to check

Run winver or [System.Environment]::OSVersion in PowerShell and compare the build (10.0.<build>.<revision>) with the fixed builds listed. Install the November 2026 cumulative update. The patch KB number is not confirmed yet: check the MSRC page for CVE-2026-95871.

## Fix

Install the November 2026 Windows cumulative update bringing the build to at least: Win10 1809 10.0.17763.9487; 21H2 10.0.19044.7846; 22H2 10.0.19045.7846; Win11 23H2 10.0.22631.7711; 24H2 10.0.26100.9974; 25H2 10.0.26200.9974; 26H1 10.0.28000.3501; 26H2 10.0.26300.9974 (per the CVE record as mirrored by OpenCVE; KB unconfirmed).

## Timeline

- 2026-11-10T19:25:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-95871
- 2026-11-10T20:35:01+00:00 analyst https://app.opencve.io/cve/CVE-2026-95871 — MSRC page is JS-only and unreadable here; NVD page empty. Used OpenCVE mirror of Microsoft's CVE record (builds, CWE-122/362, CVSS 7.0 E:U). KB number, default-enabled status, exploitation not confirmed; nothing verified. Social search skipped (brand new CVE).

## Documents

- [describes] OpenCVE: CVE-2026-95871 (mirror of Microsoft CVE record) https://app.opencve.io/cve/CVE-2026-95871

## From the sources

Heap-based buffer overflow in Windows Broadcast DVR User 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_