CVE-2020-1126 Media Foundation Memory Corruption Vulnerability

High 8.8 Published Updated

Attackers can execute arbitrary code and gain full user rights by tricking users into opening malicious documents or visiting malicious webpages.

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-2020-1126?

CVE-2020-1126 is a high-severity memory corruption vulnerability in Microsoft Windows 10, published on 21 May 2020. 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

A memory corruption vulnerability exists when Windows Media Foundation improperly handles objects in memory. An attacker who successfully exploited the vulnerability could install programs; view, change, or delete data; or create new accounts with full user rights. There are multiple ways an attacker could exploit the vulnerability, such as by convincing a user to open a specially crafted document, or by convincing a user to visit a malicious webpage. The security update addresses the vulnerability by correcting how Windows Media Foundation handles objects in memory.

Weakness: CWE-787

Which versions are affected by CVE-2020-1126?

It affects 3 products.

Products include Microsoft Windows 10, Microsoft Windows Server 2016, Microsoft Windows Server 2019.

How do I fix CVE-2020-1126?

No fix has been published for CVE-2020-1126 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-2020-1126 being exploited?

There is no known exploitation of CVE-2020-1126 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-7h24-mr54-747h.

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