CVE-2021-26876 OpenType Font Parsing Remote Code Execution Vulnerability

High 8.8 Published Updated

An attacker can execute arbitrary code by exploiting a memory corruption vulnerability in the OpenType font parsing component of Windows.

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-2021-26876?

CVE-2021-26876 is a high-severity memory corruption vulnerability in Microsoft Windows 10, published on 11 Mar 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

OpenType Font Parsing Remote Code Execution Vulnerability

Which versions are affected by CVE-2021-26876?

It affects 2 products.

Products include Microsoft Windows 10, Microsoft Windows Server 2016.

How do I fix CVE-2021-26876?

No fix has been published for CVE-2021-26876 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-26876 being exploited?

There is no known exploitation of CVE-2021-26876 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-vhc2-j742-m23q.

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