CVE-2026-58293 Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

High 8.1 Published Updated

An attacker can execute arbitrary code remotely by exploiting external control of file names or paths in Microsoft Edge.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-58293?

CVE-2026-58293 is a high-severity path traversal vulnerability in Microsoft Edge Chromium, published on 3 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

External control of file name or path in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

Weakness: CWE-73

Which versions are affected by CVE-2026-58293?

It affects 1 product.

Products include Microsoft Edge Chromium.

How do I fix CVE-2026-58293?

No fix has been published for CVE-2026-58293 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-58293 being exploited?

There is no known exploitation of CVE-2026-58293 in the wild and no public exploit code.

All Microsoft Edge Chromium vulnerabilities

Sources

Also known as GHSA-mm5h-w49f-qxp5.

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