Microsoft Edge (Chromium-based) Use-After-Free Vulnerability Leading to Remote Code Execution

Vulnerability

A use-after-free vulnerability has been identified in Microsoft Edge (Chromium-based) that allows an unauthorized attacker to execute code remotely. This vulnerability requires user interaction, as it involves convincing a user to open a specially crafted file or visit a malicious website.

Impact

Exploitation of this vulnerability could lead to unauthorized remote code execution on the affected system.

Reproduction

To reproduce this vulnerability, a user must be convinced to open a specially crafted file or visit a website designed to exploit the use-after-free condition in Microsoft Edge. Once the file is opened or the website is viewed, the vulnerability can be triggered, allowing for remote code execution.

Remediation

Users can download the security update for this vulnerability through the Microsoft Edge Security Update channel.

Added: Jul 3, 2026, 9:43 PM
Updated: Jul 3, 2026, 9:43 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
7.5
exploitability
4.0
remediation
7.7
relevance
8.8
threat
1.6
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.