CVE-2021-37852 LPE in ESET products for Windows

High 7.8 Published Updated

An attacker can escalate privileges to SYSTEM by impersonating a client of a named pipe in ESET Windows security products.

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-2021-37852?

CVE-2021-37852 is a high-severity vulnerability in ESET Endpoint Antivirus for Windows, published on 9 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

ESET products for Windows allows untrusted process to impersonate the client of a pipe, which can be leveraged by attacker to escalate privileges in the context of NT AUTHORITY\SYSTEM.

Weakness: CWE-269

Which versions are affected by CVE-2021-37852?

It affects 9 products.

Products include Eset Endpoint Antivirus, Eset Endpoint Security, Eset File Security, Eset Internet Security, Eset Mail Security, Eset Nod32 Antivirus and 3 more.

How do I fix CVE-2021-37852?

No fix has been published for CVE-2021-37852 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-37852 being exploited?

There is no known exploitation of CVE-2021-37852 in the wild and no public exploit code.

Sources

Also known as GHSA-gj8g-jfxx-vxc7.

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