CVE-2021-43221 Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Attackers can execute arbitrary code remotely via a vulnerability in the Chromium-based Microsoft Edge browser.
- 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-2021-43221?
CVE-2021-43221 is a medium-severity code injection vulnerability in Microsoft Edge Chromium, published on 24 Nov 2021. 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) Remote Code Execution Vulnerability
Weakness: CWE-94
Which versions are affected by CVE-2021-43221?
It affects 1 product.
Products include Microsoft Edge Chromium.
How do I fix CVE-2021-43221?
No fix has been published for CVE-2021-43221 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-2021-43221 being exploited?
There is no known exploitation of CVE-2021-43221 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Edge Chromium
- CVE-2024-21326 Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
- CVE-2023-35618 Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
- CVE-2023-36735 Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
- CVE-2022-33649 Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability
- CVE-2026-58289 Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Sources
Also known as GHSA-fp8m-q3h7-6ww8.