---
id: CVE-2026-88097
title: >-
  Use after free in Microsoft Edge (Chromium-based) allows an unauthorized
  attacker to elevate privileges locally.
summary: >-
  Use after free in Microsoft Edge (Chromium-based) allows an unauthorized
  attacker to elevate privileges locally.
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-416
vendor: microsoft
product: edge_chromium
affected:
  - edge_chromium < 153.0.4234.46
patched:
  - edge_chromium 153.0.4234.46
published: '2026-09-18'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T20:48:00.600'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88097'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88097'
    label: secure@microsoft.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-19T13:31:24.958680Z'
epss: 0.00256
epssPercentile: 0.15478
ingestedAt: '2026-09-18T21:53:15.790Z'
---

## Overview

Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges locally.

## Affected

- `edge_chromium < 153.0.4234.46`

## Remediation

Upgrade past the affected range:

- `edge_chromium 153.0.4234.46`