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TI-2021-08397 Aliases CVE-2021-26718GHSA-cr93-c4mw-5cqx

Incorrect authorization in Kaspersky Internet Security for Mac

Priority LOW 24CWE-863Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-863.

Summary

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

Why it matters now

EPSS 0.00225 13th percentileScored 2026-11-07
Fix Fixed Kaspersky Internet Security for Mac: 21.1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Kaspersky Internet Security for Macbefore 21.121.1Patch availableCNA
  • Kaspersky Internet Security for Mac Vendor— Affected before 21.1 Fixed in 21.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:kaspersky:internet_security:*:*:*:*:*:macos:*:*before 21.1VulnerableKaspersky
  • cpe:2.3:a:kaspersky:internet_security:*:*:*:*:*:macos:*:* Versions before 21.1 Vulnerable ·Kaspersky

Remediation

  • Fix · CNA Kaspersky Internet Security for Mac Fixed in 21.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-26718
  2. 2026-10-03 Alias added: GHSA-cr93-c4mw-5cqx

References

Advisory 1

  • TI-2022-10539 Kaspersky Anti-Virus products for home and Kaspersky Endpoint Security with antivirus… CVSS 3.1CRITICAL 9.8
  • TI-2017-09495 Incorrect permission assignment in Kaspersky Lab Kaspersky Internet Security for Android… CVSS 3.1CRITICAL 9.8
  • TI-2017-09496 In Kaspersky Internet Security for Android 11.12.4.1622, some of the application trace files were not encrypted. CVSS 3.1HIGH 7.5
  • TI-2019-11771 Kaspersky Anti-Virus, Kaspersky Internet Security, Kaspersky Total Security, Kaspersky… CVSS 3.1MEDIUM 6.5
  • TI-2019-11772 Open redirect in Kaspersky Anti-Virus, Kaspersky Internet Security, Kaspersky Total… CVSS 3.1MEDIUM 6.1
  • TI-2016-03713 Improper input validation in Kaspersky Total Security CVSS 3.0MEDIUM 5.5
See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences