---
id: "CVE-2026-96103"
page: "https://infrastack.ai/live/CVE-2026-96103"
kind: "vulnerability"
aliases: ["CVE-2026-96103"]
title: "Windows Desktop Window Manager: heap overflow lets a local user gain system rights"
severity: "high"
cvss: 7.8
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: [{"name": "Desktop Window Manager", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["dwm", "heap-overflow", "infrastructure", "local-privilege-escalation", "windows"]
not_affected_if: ["no-local-users"]
published_at: "2026-11-10T19:22:08+00:00"
first_seen_at: "2026-11-10T19:25:30+00:00"
updated_at: "2026-11-10T19:48:18+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-96103", "first_seen_at": "2026-11-10T19:25:30+00:00"}, {"source": "analyst", "url": null, "first_seen_at": "2026-11-10T19:48:18+00:00"}]
exploit_sources: []
---

# Windows Desktop Window Manager: heap overflow lets a local user gain system rights

Link for people: https://infrastack.ai/live/CVE-2026-96103 (this .md is for agents)

A heap-based buffer overflow in Windows Desktop Window Manager lets a logged-in user with some access raise their privileges on the machine. The sources give no further detail on the trigger or affected builds.

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

## Affected

- vendor:Desktop Window Manager affected range not listed fixed no fixed version listed

## How to check

Unknown until Microsoft's advisory lists affected builds and the KB. Meanwhile check Windows Update history and the MSRC Update Guide entry for CVE-2026-96103.

## Timeline

- 2026-11-10T19:25:30+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-96103
- 2026-11-10T19:48:18+00:00 analyst — Could not read MSRC or NVD page content (empty), search found no page for this id; affected builds and KB unknown. Left fix unknown, nothing verified.

## From the sources

Heap-based buffer overflow in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

---

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