---
id: "CVE-2026-85862"
page: "https://infrastack.ai/live/CVE-2026-85862"
kind: "vulnerability"
aliases: ["CVE-2026-85862"]
title: "Windows Error Reporting: double free lets a local user gain higher privileges"
severity: "high"
cvss: 7.0
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: [{"name": "Windows Error Reporting", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["infrastructure", "local-privilege-escalation", "windows", "windows-error-reporting"]
not_affected_if: []
published_at: "2026-11-10T19:21:25+00:00"
first_seen_at: "2026-11-10T19:25:18+00:00"
updated_at: "2026-11-10T21:08:41+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-85862", "first_seen_at": "2026-11-10T19:25:18+00:00"}, {"source": "analyst", "url": null, "first_seen_at": "2026-11-10T21:08:41+00:00"}]
exploit_sources: []
---

# Windows Error Reporting: double free lets a local user gain higher privileges

Link for people: https://infrastack.ai/live/CVE-2026-85862 (this .md is for agents)

A double free bug in Windows Error Reporting lets an attacker who already has a local account raise their privileges. The sources report a CVSS score of 7.0 and do not describe the exact exploit path.

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

## Affected

- vendor:Windows Error Reporting affected range not listed fixed no fixed version listed

## How to check

unknown: Microsoft's affected-build list was not readable. Check Windows Update history against the November 2026 cumulative update for your Windows version.

## Fix

unknown: apply the November 2026 Windows security update (released 2026-11-10); exact KB numbers not confirmed.

## Timeline

- 2026-11-10T19:25:18+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-85862
- 2026-11-10T21:08:41+00:00 analyst — MSRC page, NVD page and CVRF November 2026 document returned no readable content. Only confirmed: MSRC CVRF index lists the CVE under the November 2026 Security Updates (released 2026-11-10). Affected builds, KBs and fix still unknown; nothing verified. Next step: read the MSRC Update Guide entry once it renders, or the CVRF 2026-Nov file.

## From the sources

Double free in Windows Error Reporting allows an authorized attacker to elevate privileges locally.

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