---
id: "CVE-2026-119906"
page: "https://infrastack.ai/live/CVE-2026-119906"
kind: "vulnerability"
aliases: ["CVE-2026-119906"]
title: "Windows Sandbox: OS command injection lets a local user gain higher privileges"
severity: "high"
cvss: 7.8
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: [{"name": "Windows Sandbox", "fixed": ["0.8.111.0"], "affected": "< 0.8.111.0", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["infrastructure", "local", "privilege-escalation", "windows", "windows-sandbox"]
not_affected_if: ["sandbox-not-enabled", "windows-sandbox-not-installed"]
published_at: "2026-11-10T19:20:11+00:00"
first_seen_at: "2026-11-10T19:25:02+00:00"
updated_at: "2026-11-10T22:25:07+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119906", "first_seen_at": "2026-11-10T19:25:02+00:00"}, {"source": "analyst", "url": "https://cveawg.mitre.org/api/cve/CVE-2026-119906", "first_seen_at": "2026-11-10T22:25:07+00:00", "cites": ["https://cveawg.mitre.org/api/cve/CVE-2026-119906"]}]
exploit_sources: []
---

# Windows Sandbox: OS command injection lets a local user gain higher privileges

Link for people: https://infrastack.ai/live/CVE-2026-119906 (this .md is for agents)

Windows Sandbox mishandles special characters in OS commands, so an authorized local attacker can inject commands. The result is elevated privileges on the machine.

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

## Affected

- vendor:Windows Sandbox affected < 0.8.111.0 fixed 0.8.111.0

## How to check

Check whether the Windows Sandbox optional feature is enabled: PowerShell 'Get-WindowsOptionalFeature -Online -FeatureName Containers-DisposableClientVM'. If enabled, confirm the November 2026 cumulative update is installed (winver, Settings > Windows Update > Update history).

## Fix

Install the November 2026 Microsoft security update that lists CVE-2026-119906; the CVE record gives Windows Sandbox 0.8.111.0 as the fixed version. KB number not confirmed.

## Timeline

- 2026-11-10T19:25:02+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-119906
- 2026-11-10T22:25:07+00:00 analyst https://cveawg.mitre.org/api/cve/CVE-2026-119906 — Microsoft CNA CVE record read (MSRC page is JS-only, KB numbers not read). Range as published: Windows Sandbox 1.0.0.0 to <0.8.111.0 is internally odd, so not verified. No exploitation (CISA SSVC none). X not queried.

## Documents

- [advisory] CVE record CVE-2026-119906 (Microsoft CNA) https://cveawg.mitre.org/api/cve/CVE-2026-119906

## From the sources

Improper neutralization of special elements used in an os command ('os command injection') in Windows Sandbox 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_