CVE-2020-0835 Privilege escalation in Windows Defender antimalware platform

High 7.8 Published Updated

Attackers can exploit improper hard link handling in Windows Defender to elevate privileges on affected systems.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-0835?

CVE-2020-0835 is a high-severity vulnerability in Microsoft Windows Defender antimalware platform, published on 15 Apr 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An elevation of privilege vulnerability exists when Windows Defender antimalware platform improperly handles hard links, aka 'Windows Defender Antimalware Platform Hard Link Elevation of Privilege Vulnerability'.

Which versions are affected by CVE-2020-0835?

It affects 1 product.

Products include Microsoft Windows Defender.

How do I fix CVE-2020-0835?

No fix has been published for CVE-2020-0835 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-0835 being exploited?

There is no known exploitation of CVE-2020-0835 in the wild and no public exploit code.

Sources

Also known as GHSA-fj83-7fq4-4858.

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