CVE-2021-31959 Scripting Engine Memory Corruption Vulnerability

Medium 6.4 Published Updated

An attacker can exploit a memory corruption flaw in the Windows Scripting Engine to execute arbitrary code on affected systems.

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-2021-31959?

CVE-2021-31959 is a medium-severity memory corruption vulnerability in Microsoft Windows 10, published on 8 Jun 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

Scripting Engine Memory Corruption Vulnerability

Which versions are affected by CVE-2021-31959?

It affects 8 products.

Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012 and 2 more.

How do I fix CVE-2021-31959?

No fix has been published for CVE-2021-31959 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-2021-31959 being exploited?

There is no known exploitation of CVE-2021-31959 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-5mhj-whm9-8phq.

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