CVE-2025-29815 Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

High 7.6 Published 4 Apr 2025 Updated 10 Aug 2026

An authorized attacker can execute arbitrary code remotely via a use-after-free flaw in Microsoft Edge.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2025-29815?

CVE-2025-29815 is a high-severity use after free vulnerability in Microsoft Edge Chromium, published on 4 Apr 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

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

Weakness: CWE-416

Which versions are affected by CVE-2025-29815?

It affects 1 product.

Products include Microsoft Edge Chromium.

How do I fix CVE-2025-29815?

No fix has been published for CVE-2025-29815 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2025-29815 being exploited?

There is no known exploitation of CVE-2025-29815 in the wild and no public exploit code.

All Microsoft Edge Chromium vulnerabilities

Sources

Also known as GHSA-qf96-xw5w-6qv3.