CVE-2021-27223

Name: CVE-2021-27223
Creator: NVD / NIST
Published: 2022-04-01T23:15:09.163+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.19%

Last modified Jun 17, 2026

CVE-2021-27223 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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. EPSS estimates a 0.19% chance of exploitation in the next 30 days.

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

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.19%

9.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Kaspersky	Anti-Virus	< 2021-06
Kaspersky	Endpoint Security	< 2021-06
Kaspersky	Internet Security	< 2021-06
Kaspersky	Security Cloud	< 2021-06
Kaspersky	Small Office Security	< 2021-06
Kaspersky	Total Security	< 2021-06

References

Timeline

Published: Apr 1, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-27223?

How severe is CVE-2021-27223?

CVE-2021-27223 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.

How do I fix CVE-2021-27223?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-27223?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST