---
id: "CVE-2026-94522"
page: "https://infrastack.ai/live/CVE-2026-94522"
kind: "vulnerability"
aliases: ["CVE-2026-94522"]
title: "Windows Kernel Transaction Manager: use-after-free lets a local user gain privileges"
severity: "high"
cvss: 7.0
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "kernel", "local-access", "local-privilege-escalation", "windows"]
not_affected_if: ["no-local-untrusted-users"]
published_at: "2026-11-10T19:21:37+00:00"
first_seen_at: "2026-11-10T19:25:21+00:00"
updated_at: "2026-11-10T20:36:03+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-94522", "first_seen_at": "2026-11-10T19:25:21+00:00"}, {"source": "analyst", "url": "https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2026-94522", "first_seen_at": "2026-11-10T20:36:03+00:00", "cites": ["https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2026-94522"]}]
exploit_sources: []
---

# Windows Kernel Transaction Manager: use-after-free lets a local user gain privileges

Link for people: https://infrastack.ai/live/CVE-2026-94522 (this .md is for agents)

Use-after-free in the Windows Kernel Transaction Manager lets a local user with a low-privilege account win a race and gain SYSTEM. Microsoft rates it Important (CVSS 7.0), not exploited and not publicly disclosed at release on 2026-11-10.

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

## How to check

Check that the November 2026 (2026-Nov) cumulative update is installed on each Windows host (Settings > Windows Update > Update history, or Get-HotFix). Affected builds are not listed in the source I could read; confirm in the MSRC Update Guide.

## Fix

Install the November 2026 Microsoft security update (customer action required per MSRC). Exact KB numbers per Windows build not read; see the MSRC Update Guide entry for CVE-2026-94522.

## Timeline

- 2026-11-10T19:25:21+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-94522
- 2026-11-10T20:36:03+00:00 analyst https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2026-94522 — Read MSRC record (Nov 2026 release): Important, EoP to SYSTEM, race condition (AC:H), not exploited, not publicly disclosed, 'Exploitation Less Likely'. MSRC data lacks build/KB list; fix is the 2026-Nov cumulative update, KBs unknown.

## Documents

- [advisory] MSRC: Windows Kernel Transaction Manager Elevation of Privilege Vulnerability (CVE-2026-94522) https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2026-94522

## From the sources

Use after free in Kernel Transaction Manager 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_