---
id: "CVE-2026-118125"
page: "https://infrastack.ai/live/CVE-2026-118125"
kind: "vulnerability"
aliases: ["CVE-2026-118125"]
title: "Windows Message Queuing: use-after-free lets a local user gain higher privileges"
severity: "high"
cvss: 7.0
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "msmq", "windows"]
not_affected_if: ["msmq-not-installed"]
published_at: "2026-11-10T19:19:31+00:00"
first_seen_at: "2026-11-10T19:24:48+00:00"
updated_at: "2026-11-10T19:52:06+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-118125", "first_seen_at": "2026-11-10T19:24:48+00:00"}]
exploit_sources: []
---

# Windows Message Queuing: use-after-free lets a local user gain higher privileges

Link for people: https://infrastack.ai/live/CVE-2026-118125 (this .md is for agents)

A use-after-free bug in Windows Message Queuing lets an attacker who already has a local account run code with higher privileges. The sources give no further detail on the exact trigger or affected builds.

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

## How to check

- Check whether the Message Queuing (MSMQ) Windows feature is installed, for example with `Get-WindowsOptionalFeature -Online -FeatureName MSMQ-Container` in PowerShell, or in Windows Features.
- Compare the installed Windows build against Microsoft's security update guide entry for CVE-2026-118125.

## Timeline

- 2026-11-10T19:24:48+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-118125

## From the sources

Use after free in Windows Message Queuing 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_