---
id: "CVE-2026-119870"
page: "https://infrastack.ai/live/CVE-2026-119870"
kind: "vulnerability"
aliases: ["CVE-2026-119870"]
title: "Windows SMB Client: untrusted pointer lets a local user gain higher privileges"
severity: "high"
cvss: 7.0
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "smb", "windows"]
not_affected_if: ["no-local-logon"]
published_at: "2026-11-10T19:20:06+00:00"
first_seen_at: "2026-11-10T19:25:00+00:00"
updated_at: "2026-11-10T19:51:38+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119870", "first_seen_at": "2026-11-10T19:25:00+00:00"}]
exploit_sources: []
---

# Windows SMB Client: untrusted pointer lets a local user gain higher privileges

Link for people: https://infrastack.ai/live/CVE-2026-119870 (this .md is for agents)

A flaw in the Windows SMB Client mishandles a pointer it does not trust, so a signed-in attacker can dereference it to raise their privileges on the same machine. The attacker gets administrator-level control of the affected Windows host, according to the NVD entry.

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

## How to check

- Check the Windows build with `winver` or `Get-ComputerInfo` and compare it against the patched build listed by Microsoft.
- Confirm whether the SMB client feature is in use with `Get-SmbConnection`.

## Timeline

- 2026-11-10T19:25:00+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-119870

## From the sources

Untrusted pointer dereference in Windows SMB Client allows an authorized attacker to elevate privileges locally.

---

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