CVE-2021-27223 Denial of service in Kaspersky Anti-Virus products for home and Kaspersky Endpoint Security

Medium 5.5 Published Updated

A local user can cause a Windows crash by running a specially crafted binary module in Kaspersky 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-2021-27223?

CVE-2021-27223 is a medium-severity denial of service vulnerability in Kaspersky Anti-Virus products for home and Kaspersky Endpoint Security, published on 1 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A denial-of-service issue existed in one of modules that was incorporated in Kaspersky Anti-Virus products for home and Kaspersky Endpoint Security. A local user could cause Windows crash by running a specially crafted binary module. The fix was delivered automatically. Credits: (Straghkov Denis, Kurmangaleev Shamil, Fedotov Andrey, Kuts Daniil, Mishechkin Maxim, Akolzin Vitaliy) @ ISPRAS

Which versions are affected by CVE-2021-27223?

It affects 6 products.

Products include Kaspersky Anti-Virus, Kaspersky Endpoint Security, Kaspersky Internet Security, Kaspersky Security Cloud, Kaspersky Small Office Security, Kaspersky Total Security.

How do I fix CVE-2021-27223?

No fix has been published for CVE-2021-27223 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-27223 being exploited?

There is no known exploitation of CVE-2021-27223 in the wild and no public exploit code.

Sources

Also known as GHSA-7cc7-6j4x-2w54.

Is CVE-2021-27223 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free