---
id: "CVE-2026-96157"
page: "https://infrastack.ai/live/CVE-2026-96157"
kind: "vulnerability"
aliases: ["CVE-2026-96157"]
title: "Windows Media Foundation: heap overflow lets a network attacker run code"
severity: "critical"
cvss: 9.8
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "media-foundation", "windows"]
not_affected_if: []
published_at: "2026-11-10T19:22:13+00:00"
first_seen_at: "2026-11-10T19:25:32+00:00"
updated_at: "2026-11-10T19:29:13+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-96157", "first_seen_at": "2026-11-10T19:25:32+00:00"}, {"source": "analyst", "url": null, "first_seen_at": "2026-11-10T19:29:13+00:00"}]
exploit_sources: []
---

# Windows Media Foundation: heap overflow lets a network attacker run code

Link for people: https://infrastack.ai/live/CVE-2026-96157 (this .md is for agents)

A heap-based buffer overflow in Microsoft Windows Media Foundation lets an unauthorized attacker run code over the network. The sources give a CVSS score of 9.8 and do not describe the triggering media input or the affected Windows builds.

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

## How to check

unknown: MSRC entry lists no affected builds yet. Open https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96157 in a browser and compare your Windows build to the KB table.

## Timeline

- 2026-11-10T19:25:32+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-96157
- 2026-11-10T19:29:13+00:00 analyst — MSRC page (title confirms Media Foundation RCE) rendered no body via web-cli or browser; NVD empty. No builds, patch, or UI requirement read from a primary source. Nothing verified. Revisit when MSRC lists KBs (likely the Nov 2026 Patch Tuesday).

## From the sources

Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.

---

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