Vulnerability details
Advisory: SB2021092316 - Privilege escalation in Apple macOS Catalina
Vulnerable component: macOS
CVE-ID: CVE-2021-30869
CVSSv3 score: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C
CWE-ID: CWE-843 - Type confusion
Description:
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a type confusion error within the XNU subsystem. A local user can run a specially crafted program to trigger a type confusion error and execute arbitrary code with elevated privileges.
Note, the vulnerability is being actively exploited in the wild.
External links:
https://support.apple.com/en-us/HT212825