---
id: "CVE-2026-96031"
page: "https://infrastack.ai/live/CVE-2026-96031"
kind: "vulnerability"
aliases: ["CVE-2026-96031"]
title: "Windows kernel: out-of-bounds write lets a local user gain admin rights"
severity: "high"
cvss: 7.8
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: [{"name": "Windows Kernel", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["infrastructure", "windows", "windows-kernel"]
not_affected_if: ["no-untrusted-local-users", "single-user-machine"]
published_at: "2026-11-10T19:21:59+00:00"
first_seen_at: "2026-11-10T19:25:27+00:00"
updated_at: "2026-11-10T20:04:51+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-96031", "first_seen_at": "2026-11-10T19:25:27+00:00"}, {"source": "analyst", "url": "https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2026-96031", "first_seen_at": "2026-11-10T20:04:30+00:00", "cites": ["https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2026-96031"]}]
exploit_sources: []
---

# Windows kernel: out-of-bounds write lets a local user gain admin rights

Link for people: https://infrastack.ai/live/CVE-2026-96031 (this .md is for agents)

Microsoft rates this Windows kernel flaw Important (CVSS 7.8). An out-of-bounds write lets someone who already has a local account gain higher privileges. Microsoft says it is not exploited or publicly disclosed. Affected builds and the fixing update were not retrievable, so they are unknown.

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

## Affected

- vendor:Windows Kernel affected range not listed fixed no fixed version listed

## How to check

Run winver (or Get-ComputerInfo) for your build, then open Microsoft's Security Update Guide entry for CVE-2026-96031 and compare it with the KB listed for your Windows version. Affected builds and KB were not available when this was written.

## Timeline

- 2026-11-10T19:25:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-96031
- 2026-11-10T20:04:30+00:00 analyst https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2026-96031 — MSRC record (sug API) read: Windows Kernel EoP, OOB write, local, CVSS 7.8 Important, E:U, not exploited, not publicly disclosed. Affected builds/KB/fix absent from the record I could retrieve; left unknown. Need the full MSRC page (JS-only; browser-cli 402, web-cli empty).

## Documents

- [advisory] MSRC: Windows Kernel Elevation of Privilege Vulnerability CVE-2026-96031 https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2026-96031

## From the sources

Out-of-bounds write in Windows Kernel 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_