CVE-2021-27223

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-04-01 · updated 2026-06-17

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

Affected products

Kaspersky Anti-Virus: before 2021-06 — fixed in 2021-06
Kaspersky Endpoint Security for Windows: before 2021-06 — fixed in 2021-06
Kaspersky Internet Security: before 2021-06 — fixed in 2021-06
Kaspersky Security Cloud: before 2021-06 — fixed in 2021-06
Kaspersky Small Office Security: before 2021-06 — fixed in 2021-06
Kaspersky Total Security: before 2021-06 — fixed in 2021-06

How to fix

Upgrade to a fixed version: Kaspersky Anti-Virus 2021-06; Kaspersky Endpoint Security for Windows 2021-06; Kaspersky Internet Security 2021-06; Kaspersky Security Cloud 2021-06; Kaspersky Small Office Security 2021-06; Kaspersky Total Security 2021-06. Check the vendor advisory for mitigations.

References

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