CVE-2021-26718 json
KIS for macOS in some use cases was vulnerable to AV bypass that potentially allowed an attacker to disable anti-virus protection.
published 2021-04-01 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-13506
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 13%
- public exploits
- 0
- none known
Summary
KIS for macOS in some use cases was vulnerable to AV bypass that potentially allowed an attacker to disable anti-virus protection.
Patch / fix
- kaspersky internet_security 21.1
Exploit prediction
0.22% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:N/I:P/A:N |
Affected products
- n/a Kaspersky Internet Security for Mac
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
support.kaspersky.com
/general/vulnerability.aspx?el=12430#310321
broken-link, vendor-advisory
Sources
- CVE List CVE-2021-26718
- NVD CVE-2021-26718
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