CVE-2021-36928 Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

Medium 6.0 Published 26 Aug 2021 Updated 10 Aug 2026

Attackers can exploit a path traversal flaw in Microsoft Edge to escalate privileges on the host system.

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

What is CVE-2021-36928?

CVE-2021-36928 is a medium-severity path traversal vulnerability in Microsoft Edge Chromium, published on 26 Aug 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

Weakness: CWE-59

Which versions are affected by CVE-2021-36928?

It affects 1 product.

Products include Microsoft Edge Chromium.

How do I fix CVE-2021-36928?

No fix has been published for CVE-2021-36928 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-2021-36928 being exploited?

There is no known exploitation of CVE-2021-36928 in the wild and no public exploit code.

All Microsoft Edge Chromium vulnerabilities

Sources

Also known as GHSA-j276-wgc4-x7jw.