CVE-2025-59251 Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

High 7.6 Published Updated

Attackers can execute arbitrary code remotely via a vulnerability in Microsoft Edge, requiring users to apply the latest security patch.

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-2025-59251?

CVE-2025-59251 is a high-severity code injection vulnerability in Microsoft Edge Chromium, published on 24 Sep 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

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

Weakness: CWE-94, CWE-121

Which versions are affected by CVE-2025-59251?

It affects 1 product.

Products include Microsoft Edge Chromium.

How do I fix CVE-2025-59251?

No fix has been published for CVE-2025-59251 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2025-59251 being exploited?

There is no known exploitation of CVE-2025-59251 in the wild and no public exploit code.

All Microsoft Edge Chromium vulnerabilities

Sources

Also known as GHSA-474c-936g-hq79.

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