---
id: "CVE-2026-95920"
page: "https://infrastack.ai/live/CVE-2026-95920"
kind: "vulnerability"
aliases: ["CVE-2026-95920"]
title: "Windows Management Instrumentation: heap overflow lets a local user gain admin rights"
severity: "high"
cvss: 7.8
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["heap-overflow", "infrastructure", "local-privilege-escalation", "windows", "wmi"]
not_affected_if: ["no-local-untrusted-users"]
published_at: "2026-11-10T19:21:45+00:00"
first_seen_at: "2026-11-10T19:25:23+00:00"
updated_at: "2026-11-10T20:25:12+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-95920", "first_seen_at": "2026-11-10T19:25:23+00:00"}, {"source": "analyst", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-95920", "first_seen_at": "2026-11-10T20:25:12+00:00", "cites": ["https://nvd.nist.gov/vuln/detail/CVE-2026-95920"]}]
exploit_sources: []
---

# Windows Management Instrumentation: heap overflow lets a local user gain admin rights

Link for people: https://infrastack.ai/live/CVE-2026-95920 (this .md is for agents)

A heap-based buffer overflow in Windows Management Instrumentation lets an already-authorized local user elevate their privileges. The sources do not describe an exploit in the wild.

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

## How to check

Unknown until the MSRC entry is read. Meanwhile: check Windows Update history for the November 2026 (2026-11) cumulative update on each Windows host; run 'winver' or 'Get-HotFix' to list installed KBs.

## Fix

Install the November 2026 Windows cumulative security update for your Windows version (per Microsoft's update guide for CVE-2026-95920); exact KB and build numbers unknown, not yet read from a primary source.

## Timeline

- 2026-11-10T19:25:23+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-95920
- 2026-11-10T20:25:12+00:00 analyst https://nvd.nist.gov/vuln/detail/CVE-2026-95920 — Only NVD record read (CVSS 7.8, local, low privileges, no UI). MSRC update guide is JS-only and the Nov 2026 CVRF is too large to fetch; affected builds, KBs and fixed builds not read, so nothing verified. Exploitation not stated in sources. Revisit with the MSRC page or the Nov 2026 Patch Tuesday KB list. X and web search not tried.

## Documents

- [describes] NVD CVE-2026-95920 https://nvd.nist.gov/vuln/detail/CVE-2026-95920

## From the sources

Heap-based buffer overflow in Windows Management Instrumentation 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_