---
id: "CVE-2026-105543"
page: "https://infrastack.ai/live/CVE-2026-105543"
kind: "vulnerability"
aliases: ["CVE-2026-105543"]
title: "Windows Installer: null pointer flaw lets local users gain higher privileges"
severity: "high"
cvss: 7.8
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "windows", "windows-installer"]
not_affected_if: []
published_at: "2026-11-10T19:17:56+00:00"
first_seen_at: "2026-11-10T19:24:19+00:00"
updated_at: "2026-11-10T19:42:32+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105543", "first_seen_at": "2026-11-10T19:24:19+00:00"}]
exploit_sources: []
---

# Windows Installer: null pointer flaw lets local users gain higher privileges

Link for people: https://infrastack.ai/live/CVE-2026-105543 (this .md is for agents)

A null pointer dereference in Windows Installer 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 versions.

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

## Timeline

- 2026-11-10T19:24:19+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-105543

## From the sources

Null pointer dereference in Windows Installer allows an authorized attacker to elevate privileges locally.

---

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