Security restrictions bypass in macOS - CVE-2021-30740
Published: May 24, 2021
Vulnerability identifier: #VU53466
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-30740
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper privilege management in OS Kernel subsystem. A local user can execute arbitrary code on the system with kernel privileges.
Affected software
macOS
watchOS
iPadOS
tvOS
Apple iOS
watchOS
iPadOS
tvOS
Apple iOS
How to mitigate CVE-2021-30740
Install updates from vendor's website.
macOS - update to 11.4 20F71
watchOS - update to 7.5 18T567
iPadOS - update to 14.6 18F72
tvOS - update to 14.6 18L569
Apple iOS - update to 14.6 18F72
watchOS - update to 7.5 18T567
iPadOS - update to 14.6 18F72
tvOS - update to 14.6 18L569
Apple iOS - update to 14.6 18F72