---
id: "CVE-2026-95881"
page: "https://infrastack.ai/live/CVE-2026-95881"
kind: "vulnerability"
aliases: ["CVE-2026-95881"]
title: "Windows Push Notifications: heap 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"]
not_affected_if: ["no-local-untrusted-users"]
published_at: "2026-11-10T19:21:41+00:00"
first_seen_at: "2026-11-10T19:25:22+00:00"
updated_at: "2026-11-10T20:30:20+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-95881", "first_seen_at": "2026-11-10T19:25:22+00:00"}, {"source": "analyst", "url": null, "first_seen_at": "2026-11-10T20:30:20+00:00"}]
exploit_sources: []
---

# Windows Push Notifications: heap overflow lets a local user gain higher privileges

Link for people: https://infrastack.ai/live/CVE-2026-95881 (this .md is for agents)

A heap-based buffer overflow in Windows Push Notifications lets a user with a local account elevate privileges (CVSS 7.8, AV:L/PR:L). Microsoft listed it in the November 2026 Patch Tuesday. No exploitation or public PoC found.

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

## How to check

Open the Microsoft Security Update Guide entry for CVE-2026-95881, find the KB for your Windows build, and compare with the installed hotfixes (PowerShell: Get-HotFix). Affected builds and KB numbers are unknown until read from MSRC.

## Timeline

- 2026-11-10T19:25:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-95881
- 2026-11-10T20:30:20+00:00 analyst — MSRC Update Guide page is JS-only and the CVRF API returned no entry text, so affected builds and KB could not be read from the vendor. Release is in the November 2026 Patch Tuesday (2026-11-10); a secondary aggregator suggests Windows 10/11 builds but I did not verify. Nothing marked verified.

## From the sources

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

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_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_