---
id: "CVE-2026-83831"
kind: "vulnerability"
aliases: ["CVE-2026-83831"]
title: "Microsoft Edge: double free lets a remote attacker run code"
severity: "high"
cvss: 8.8
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["browser", "microsoft-edge", "other", "windows"]
not_affected_if: []
published_at: "2026-10-27T21:19:08+00:00"
first_seen_at: "2026-10-27T21:29:22+00:00"
updated_at: "2026-10-27T21:30:16+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-83831", "first_seen_at": "2026-10-27T21:29:22+00:00"}]
---

# Microsoft Edge: double free lets a remote attacker run code

A double free bug in the Chromium-based Microsoft Edge browser lets an unauthorized attacker run code over the network. The sources give no affected versions, fixed version or exploitation details.

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

## How to check

- unknown

## Fix

- unknown

## Timeline

- 2026-10-27T21:29:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-83831

## From the sources

Double free 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_