---
id: "CVE-2026-85898"
kind: "vulnerability"
aliases: ["CVE-2026-85898"]
title: "Microsoft Edge: type confusion lets a network attacker run code"
severity: "high"
cvss: 8.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["browser", "edge", "package", "windows"]
not_affected_if: ["patched-edge-version"]
published_at: "2026-10-27T21:19:34+00:00"
first_seen_at: "2026-10-27T21:29:22+00:00"
updated_at: "2026-10-27T21:30:17+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-85898", "first_seen_at": "2026-10-27T21:29:22+00:00"}]
---

# Microsoft Edge: type confusion lets a network attacker run code

Microsoft Edge (Chromium-based) mishandles a resource of an incompatible type, a type confusion flaw. An unauthorized attacker can execute code on the machine over the network.

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

## How to check

- Check the installed Edge version in edge://settings/help and compare it with the fixed release in the vendor advisory
- unknown

## Fix

- Update Microsoft Edge to the latest stable release via edge://settings/help or the managed update channel
- unknown

## Timeline

- 2026-10-27T21:29:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-85898

## From the sources

Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_