CVE-2018-8634 Memory corruption in Windows 10

High 8.8 Published Updated

Remote attackers can execute arbitrary code via a memory handling flaw in the Microsoft Text-To-Speech component on Windows 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-2018-8634?

CVE-2018-8634 is a high-severity memory corruption vulnerability in Microsoft Windows 10, published on 12 Dec 2018. 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 remote code execution vulnerability exists in Windows where Microsoft text-to-speech fails to properly handle objects in the memory, aka "Microsoft Text-To-Speech Remote Code Execution Vulnerability." This affects Windows Server 2016, Windows 10, Windows Server 2019, Windows 10 Servers.

Which versions are affected by CVE-2018-8634?

It affects 3 products.

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

How do I fix CVE-2018-8634?

No fix has been published for CVE-2018-8634 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-2018-8634 being exploited?

There is no known exploitation of CVE-2018-8634 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-hv2g-m5p7-x4pm.

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