CVE-2023-36787 Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

High 8.8 Published 21 Aug 2023 Updated 10 Aug 2026

Attackers can exploit a use-after-free flaw in Microsoft Edge to escalate privileges within the browser environment.

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

What is CVE-2023-36787?

CVE-2023-36787 is a high-severity use after free vulnerability in Microsoft Edge Chromium, published on 21 Aug 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

Weakness: CWE-416

Which versions are affected by CVE-2023-36787?

It affects 1 product.

Products include Microsoft Edge Chromium.

How do I fix CVE-2023-36787?

No fix has been published for CVE-2023-36787 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-2023-36787 being exploited?

There is no known exploitation of CVE-2023-36787 in the wild and no public exploit code.

All Microsoft Edge Chromium vulnerabilities

Sources

Also known as GHSA-9jrj-9rp7-5gh2.