---
id: "CVE-2026-105511"
page: "https://infrastack.ai/live/CVE-2026-105511"
kind: "vulnerability"
aliases: ["CVE-2026-105511"]
title: "Windows PPPoE: race condition lets a local user gain higher privileges"
severity: "high"
cvss: 7.0
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "pppoe", "windows"]
not_affected_if: ["no-pppoe-in-use"]
published_at: "2026-11-10T19:17:50+00:00"
first_seen_at: "2026-11-10T19:24:17+00:00"
updated_at: "2026-11-10T19:54:14+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105511", "first_seen_at": "2026-11-10T19:24:17+00:00"}]
exploit_sources: []
---

# Windows PPPoE: race condition lets a local user gain higher privileges

Link for people: https://infrastack.ai/live/CVE-2026-105511 (this .md is for agents)

A race condition in the Windows Point-to-Point Protocol over Ethernet (PPPoE) component lets an authorized local attacker elevate privileges. The sources give no detail beyond that description.

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

## How to check

- Check the Windows build and patch level with `winver` or `systeminfo` against the Microsoft security update guide entry for CVE-2026-105511
- Confirm whether the Remote Access / PPPoE component is in use on the machine (unknown from the sources)

## Timeline

- 2026-11-10T19:24:17+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-105511

## From the sources

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Point-to-Point Protocol over Ethernet (PPPoE) 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_