---
id: "CVE-2026-95891"
page: "https://infrastack.ai/live/CVE-2026-95891"
kind: "vulnerability"
aliases: ["CVE-2026-95891"]
title: "Windows DirectMusic: heap overflow lets a local user run code"
severity: "high"
cvss: 7.8
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["directmusic", "other", "windows"]
not_affected_if: []
published_at: "2026-11-10T19:21:42+00:00"
first_seen_at: "2026-11-10T19:25:22+00:00"
updated_at: "2026-11-10T20:28:31+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-95891", "first_seen_at": "2026-11-10T19:25:22+00:00"}, {"source": "analyst", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-95891", "first_seen_at": "2026-11-10T20:28:31+00:00", "cites": ["https://nvd.nist.gov/vuln/detail/CVE-2026-95891"]}]
exploit_sources: []
---

# Windows DirectMusic: heap overflow lets a local user run code

Link for people: https://infrastack.ai/live/CVE-2026-95891 (this .md is for agents)

A heap-based buffer overflow in Microsoft DirectMusic on Windows lets an attacker who already has a local, authorized account run code. The sources give no more detail on the trigger or the affected Windows builds.

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

## How to check

Unknown. Open the MSRC Security Update Guide entry for CVE-2026-95891 for affected Windows builds and the KB; the November 2026 Patch Tuesday cumulative update (released 2026-11-10) is the likely carrier but this is unconfirmed. Check installed KBs with Get-HotFix.

## Timeline

- 2026-11-10T19:25:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-95891
- 2026-11-10T20:28:31+00:00 analyst https://nvd.nist.gov/vuln/detail/CVE-2026-95891 — MSRC page is JS-only and returned nothing; CVRF 2026-Nov feed too large (>10MB) to fetch; NVD gives only the description and CVSS 7.8 (AV:L/PR:L). No affected builds, KB, or default-on status confirmed; nothing verified. Search tools not used beyond this. Needs a revisit with the MSRC page text or a smaller CVRF query.

## Documents

- [describes] NVD CVE-2026-95891 https://nvd.nist.gov/vuln/detail/CVE-2026-95891

## From the sources

Heap-based buffer overflow in Windows Microsoft DirectMusic allows an authorized attacker to execute code locally.

---

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