vulnerability
OS X update for Kernel (CVE-2021-30739)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:N/C:P/I:P/A:P) | Aug 23, 2021 | Aug 23, 2021 | Mar 27, 2026 |
Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
Aug 23, 2021
Added
Aug 23, 2021
Modified
Mar 27, 2026
Description
A local attacker may be able to elevate their privileges. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. A memory corruption issue was addressed with improved validation.
Solutions
apple-osx-security-update-2021-003-catalinaapple-osx-security-update-2021-004-mojaveapple-osx-upgrade-11_4
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.