---
id: "CVE-2026-108406"
page: "https://infrastack.ai/live/CVE-2026-108406"
kind: "vulnerability"
aliases: ["CVE-2026-108406"]
title: "Windows Network Connection Broker use-after-free lets local users gain higher privileges"
severity: "high"
cvss: 7.0
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "network-connection-broker", "windows"]
not_affected_if: ["unknown"]
published_at: "2026-11-10T19:18:09+00:00"
first_seen_at: "2026-11-10T19:24:22+00:00"
updated_at: "2026-11-10T19:53:53+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-108406", "first_seen_at": "2026-11-10T19:24:22+00:00"}]
exploit_sources: []
---

# Windows Network Connection Broker use-after-free lets local users gain higher privileges

Link for people: https://infrastack.ai/live/CVE-2026-108406 (this .md is for agents)

A use-after-free bug in the Windows Network Connection Broker component lets an attacker who already has a local account elevate their privileges. The sources give no further 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

- Check the Windows build with `winver` and compare it against Microsoft's security update guide for CVE-2026-108406

## Timeline

- 2026-11-10T19:24:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-108406

## From the sources

Use after free in Windows Network Connection Broker allows an authorized attacker to elevate privileges locally.

---

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