---
id: "CVE-2026-105567"
page: "https://infrastack.ai/live/CVE-2026-105567"
kind: "vulnerability"
aliases: ["CVE-2026-105567"]
title: "Windows Print Spooler: use-after-free lets a local user gain higher privileges"
severity: "high"
cvss: 7.0
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: [{"name": "Windows 11 24H2", "fixed": ["10.0.26100.9974"], "affected": ">= 10.0.26100.0, < 10.0.26100.9974", "ecosystem": "vendor"}, {"name": "Windows 11 25H2", "fixed": ["10.0.26200.9974"], "affected": ">= 10.0.26200.0, < 10.0.26200.9974", "ecosystem": "vendor"}, {"name": "Windows 11 26H1", "fixed": ["10.0.28000.3501"], "affected": ">= 10.0.28000.0, < 10.0.28000.3501", "ecosystem": "vendor"}, {"name": "Windows 11 26H2", "fixed": ["10.0.26300.9974"], "affected": ">= 10.0.26300.0, < 10.0.26300.9974", "ecosystem": "vendor"}, {"name": "Windows Server 2025", "fixed": ["10.0.26100.33822"], "affected": ">= 10.0.26100.0, < 10.0.26100.33822", "ecosystem": "vendor"}]
ecosystems: []
tags: ["infrastructure", "local", "print-spooler", "privilege-escalation", "windows"]
not_affected_if: ["no-local-untrusted-users", "spooler-disabled"]
published_at: "2026-11-10T19:17:59+00:00"
first_seen_at: "2026-11-10T19:24:20+00:00"
updated_at: "2026-11-11T00:55:00+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105567", "first_seen_at": "2026-11-10T19:24:20+00:00"}, {"source": "analyst", "url": "https://nvd.nist.gov/vuln/detail/cve-2026-105567", "first_seen_at": "2026-11-11T00:55:00+00:00", "cites": ["https://nvd.nist.gov/vuln/detail/cve-2026-105567", "https://ismalicious.com/cve/CVE-2026-105567"]}]
exploit_sources: []
---

# Windows Print Spooler: use-after-free lets a local user gain higher privileges

Link for people: https://infrastack.ai/live/CVE-2026-105567 (this .md is for agents)

A use-after-free bug in Windows Print Spooler components lets an already-authorized local user raise their privileges. An attacker who can run code on the machine can gain elevated rights.

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

## Affected

- vendor:Windows 11 24H2 affected >= 10.0.26100.0, < 10.0.26100.9974 fixed 10.0.26100.9974
- vendor:Windows 11 25H2 affected >= 10.0.26200.0, < 10.0.26200.9974 fixed 10.0.26200.9974
- vendor:Windows 11 26H1 affected >= 10.0.28000.0, < 10.0.28000.3501 fixed 10.0.28000.3501
- vendor:Windows 11 26H2 affected >= 10.0.26300.0, < 10.0.26300.9974 fixed 10.0.26300.9974
- vendor:Windows Server 2025 affected >= 10.0.26100.0, < 10.0.26100.33822 fixed 10.0.26100.33822

## How to check

- Run winver or [Environment]::OSVersion in PowerShell and compare the full build (e.g. 10.0.26100.xxxx) with the fixed builds: 24H2 < 10.0.26100.9974, 25H2 < 10.0.26200.9974, 26H1 < 10.0.28000.3501, 26H2 < 10.0.26300.9974, Server 2025 < 10.0.26100.33822 are affected.
- Run Get-Service Spooler; if the service is stopped and disabled, the spooler is not running on that machine (also check older Windows versions are not listed in the CNA record).

## Fix

Install the November 2026 Windows cumulative update that brings the build to at least: Windows 11 24H2 10.0.26100.9974, 25H2 10.0.26200.9974, 26H1 10.0.28000.3501, 26H2 10.0.26300.9974, Windows Server 2025 10.0.26100.33822 (per Microsoft CNA record; confirm KB on the MSRC guide).

## Timeline

- 2026-11-10T19:24:20+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-105567
- 2026-11-11T00:55:00+00:00 analyst https://nvd.nist.gov/vuln/detail/cve-2026-105567 — MSRC update guide page is JS-only and returned no data; build ranges come from the Microsoft CNA record as shown on NVD/isMalicious (not the MSRC page), so nothing marked verified. No exploitation or PoC reported; not in KEV.

## Documents

- [describes] NVD: CVE-2026-105567 (Microsoft CNA data) https://nvd.nist.gov/vuln/detail/cve-2026-105567
- [mentions] isMalicious: CVE-2026-105567 (CNA versions) https://ismalicious.com/cve/CVE-2026-105567

## From the sources

Use after free in Windows Print Spooler Components 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_