---
id: CVE-2026-70341
title: >-
  Use after free in Microsoft Edge (Chromium-based) allows an authorized
  attacker to execute code over a network.
summary: >-
  Use after free in Microsoft Edge (Chromium-based) allows an authorized
  attacker to execute code over a network.
severity: high
cvss: 8.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-416
vendor: Microsoft
product: Microsoft Edge (Chromium-based)
affected:
  - edge_chromium-based >= 1.0.0.0 < 152.0.4191.52
  - edge_for_android >= 1.0.0.0 < 152.0.4191.52
  - edge_for_ios >= 1.0.0.0 < 152.0.4191.52
  - edge_for_linux >= 1.0.0 < 152.0.4191.52
  - edge_for_mac >= 1.0.0.0 < 152.0.4191.52
published: '2026-09-11'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T19:30:49.967'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-70341'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70341'
    label: secure@microsoft.com
tags:
  - nvd
  - cve.org
epss: 0.00618
epssPercentile: 0.48272
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-12T03:55:42.747889Z'
ingestedAt: '2026-09-14T15:23:07.478Z'
---

## Overview

Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.