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Vulnerability record · CVE-2021-26718 · published 1 April 2021

CVE-2021-26718: Kaspersky internet security incorrect authorization vulnerability

Kaspersky · Internet Security

KIS for macOS in some use cases was vulnerable to AV bypass that potentially allowed an attacker to disable anti-virus protection.

5.5 CVSS 3.1 Medium EPSS 0.22% · top 89.1% CWE-863 · Incorrect authorization
5.5CVSS 3.1 base score, v2 2.1
0.22%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

KIS for macOS in some use cases was vulnerable to AV bypass that potentially allowed an attacker to disable anti-virus protection.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://support.kaspersky.com/general/vulnerability.aspx?el=12430#310321 Broken LinkVendor Advisory
https://support.kaspersky.com/general/vulnerability.aspx?el=12430#310321 Broken LinkVendor Advisory

Track CVE-2021-26718 inside VULONE

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-26718), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.