---
id: "CVE-2026-105551"
page: "https://infrastack.ai/live/CVE-2026-105551"
kind: "vulnerability"
aliases: ["CVE-2026-105551"]
title: "Windows NetBIOS: heap overflow lets a network attacker gain elevated privileges"
severity: "high"
cvss: 7.5
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "netbios", "windows"]
not_affected_if: []
published_at: "2026-11-10T19:17:57+00:00"
first_seen_at: "2026-11-10T19:24:19+00:00"
updated_at: "2026-11-10T19:47:30+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105551", "first_seen_at": "2026-11-10T19:24:19+00:00"}]
exploit_sources: []
---

# Windows NetBIOS: heap overflow lets a network attacker gain elevated privileges

Link for people: https://infrastack.ai/live/CVE-2026-105551 (this .md is for agents)

A heap-based buffer overflow in the Windows NetBIOS service lets an unauthenticated attacker over the network raise their privileges. The sources do not state which Windows versions are affected or what a full exploit chain requires.

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

## Timeline

- 2026-11-10T19:24:19+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-105551

## From the sources

Heap-based buffer overflow in Windows NetBIOS allows an unauthorized attacker to elevate privileges over a network.

---

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