---
id: "CVE-2026-96126"
page: "https://infrastack.ai/live/CVE-2026-96126"
kind: "vulnerability"
aliases: ["CVE-2026-96126"]
title: "Windows Graphics Kernel: heap overflow lets a local user gain system privileges"
severity: "high"
cvss: 7.8
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["endpoints", "infrastructure", "windows"]
not_affected_if: []
published_at: "2026-11-10T19:22:10+00:00"
first_seen_at: "2026-11-10T19:25:31+00:00"
updated_at: "2026-11-10T19:47:04+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-96126", "first_seen_at": "2026-11-10T19:25:31+00:00"}, {"source": "analyst", "url": null, "first_seen_at": "2026-11-10T19:47:04+00:00"}]
exploit_sources: []
---

# Windows Graphics Kernel: heap overflow lets a local user gain system privileges

Link for people: https://infrastack.ai/live/CVE-2026-96126 (this .md is for agents)

A heap-based buffer overflow in the Windows Graphics Kernel lets an attacker who already has a local account raise their privileges. The sources give no further detail on the trigger or the affected Windows builds.

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

## How to check

- Run winver (or: Get-ComputerInfo OsBuildNumber) and compare the build with the KB listed for CVE-2026-96126 in Microsoft's Security Update Guide (https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96126); installing the November 2026 Patch Tuesday cumulative update is the likely fix, but the exact KB and build are not confirmed here.

## Timeline

- 2026-11-10T19:25:31+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-96126
- 2026-11-10T19:47:04+00:00 analyst — Could not read MSRC entry: update-guide page is JS-only (WebFetch returned nothing), CVRF 2026-Nov doc exceeds 10 MB fetch limit. No affected builds, KBs or fixed versions confirmed; nothing verified. Search/X not tried. Revisit with a browser-cli read of the MSRC page or the CVRF doc saved to disk.

## From the sources

Heap-based buffer overflow in Windows Graphics Kernel allows an authorized attacker to elevate privileges locally.

---

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