vulnerability
OS X update for Kernel (CVE-2021-30740)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:M/Au:N/C:C/I:C/A:C) | Aug 23, 2021 | Aug 23, 2021 | Mar 27, 2026 |
Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
Aug 23, 2021
Added
Aug 23, 2021
Modified
Mar 27, 2026
Description
A logic issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. A malicious application may be able to execute arbitrary code with kernel privileges.
Solution
apple-osx-upgrade-11_4
Rapid7 Labs
2026 Global Threat Landscape Report
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