---
id: "CVE-2026-112975"
page: "https://infrastack.ai/live/CVE-2026-112975"
kind: "vulnerability"
aliases: ["CVE-2026-112975"]
title: "Windows: LLDP pointer flaw lets an adjacent attacker crash networking"
severity: "medium"
cvss: 5.3
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "lldp", "network", "windows"]
not_affected_if: ["no-adjacent-untrusted-network", "non-windows-hosts"]
published_at: "2026-11-10T19:18:48+00:00"
first_seen_at: "2026-11-10T19:24:36+00:00"
updated_at: "2026-11-10T20:02:34+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112975", "first_seen_at": "2026-11-10T19:24:36+00:00"}]
exploit_sources: []
---

# Windows: LLDP pointer flaw lets an adjacent attacker crash networking

Link for people: https://infrastack.ai/live/CVE-2026-112975 (this .md is for agents)

An untrusted pointer dereference in the Windows Link-Layer Discovery Protocol (LLDP) implementation lets an unauthorized attacker on the same network segment cause a denial of service. The sources describe only a denial of service, not code execution or data access.

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

## How to check

- Check the Windows build with `winver` or `systeminfo` and compare it to the fixed build in Microsoft's advisory
- Check whether LLDP is in use on the host or on its switch ports (unknown from the sources how to confirm this on a given host)

## Timeline

- 2026-11-10T19:24:36+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112975

## From the sources

Untrusted pointer dereference in Windows Link-Layer Discovery Protocol (LLDP) allows an unauthorized attacker to deny service over an adjacent network.

---

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