---
id: "CVE-2026-116707"
page: "https://infrastack.ai/live/CVE-2026-116707"
kind: "vulnerability"
aliases: ["CVE-2026-116707"]
title: "Windows: use-after-free in link-layer discovery lets local users gain privileges"
severity: "high"
cvss: 7.0
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["endpoints", "infrastructure", "lltd", "local-privilege-escalation", "windows"]
not_affected_if: ["fully-patched-windows", "no-local-untrusted-users"]
published_at: "2026-11-10T19:19:12+00:00"
first_seen_at: "2026-11-10T19:24:45+00:00"
updated_at: "2026-11-10T23:39:36+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-116707", "first_seen_at": "2026-11-10T19:24:45+00:00"}, {"source": "analyst", "url": "https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2026-116707", "first_seen_at": "2026-11-10T23:39:36+00:00", "cites": ["https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2026-116707"]}]
exploit_sources: []
---

# Windows: use-after-free in link-layer discovery lets local users gain privileges

Link for people: https://infrastack.ai/live/CVE-2026-116707 (this .md is for agents)

Use-after-free in the Windows Link Layer Topology Discovery (LLTD) protocol lets a low-privileged local user elevate privileges, potentially to SYSTEM. Microsoft rates it Important (CVSS 7.0, high attack complexity: a race must be won), says it is not publicly disclosed or exploited, and assesses exploitation as less likely.

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

## How to check

- Open Microsoft's Security Update Guide entry for CVE-2026-116707 (msrc.microsoft.com/update-guide), find your Windows version, and note the listed KB.
- Run winver or PowerShell Get-HotFix to see whether that KB (or a later cumulative update) is installed.
- Affected builds and KB numbers were not readable from the sources available to this run: unknown.

## Timeline

- 2026-11-10T19:24:45+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-116707
- 2026-11-10T23:39:36+00:00 analyst https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2026-116707 — MSRC API page read (CVSS 7.0, less likely, not exploited/disclosed). Affected builds and patch KB not available: MSRC UI is JS-only and browser/search credits are exhausted. Nothing marked verified. Revisit to fill versions and KB. X and web search not used.

## Documents

- [advisory] MSRC Security Update Guide: CVE-2026-116707 https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2026-116707

## From the sources

Use after free in Windows Link Layer Topology Discovery Protocol allows an authorized attacker to elevate privileges locally.

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_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_