---
id: "CVE-2026-96036"
page: "https://infrastack.ai/live/CVE-2026-96036"
kind: "vulnerability"
aliases: ["CVE-2026-96036"]
title: "Windows Installer: integer overflow lets a local user gain higher privileges"
severity: "high"
cvss: 7.8
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "local-privilege-escalation", "windows", "windows-installer"]
not_affected_if: ["no-local-untrusted-users"]
published_at: "2026-11-10T19:22:00+00:00"
first_seen_at: "2026-11-10T19:25:28+00:00"
updated_at: "2026-11-10T20:04:39+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-96036", "first_seen_at": "2026-11-10T19:25:28+00:00"}, {"source": "analyst", "url": null, "first_seen_at": "2026-11-10T20:04:39+00:00"}]
exploit_sources: []
---

# Windows Installer: integer overflow lets a local user gain higher privileges

Link for people: https://infrastack.ai/live/CVE-2026-96036 (this .md is for agents)

A flaw in Windows Installer, the component that installs and removes Windows software, lets an attacker who already has a local account raise their privileges. The sources do not describe the exact trigger, so the precise exploit path is unknown.

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

## How to check

Unknown: affected Windows builds and KB not obtained. Check the MSRC Security Update Guide entry for CVE-2026-96036 and compare installed KBs (Get-HotFix) against it.

## Timeline

- 2026-11-10T19:25:28+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-96036
- 2026-11-10T20:04:39+00:00 analyst — Could not read MSRC (JS page, empty via web-cli), NVD (WebFetch returned only home page), cve.org (empty record) or API; no primary content obtained, so no versions, KB or mitigation. Nothing verified. Needs revisit when MSRC page is readable (check Nov 2026 Patch Tuesday KBs).

## From the sources

Integer overflow or wraparound in Windows Installer 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_