SB2023062151 - Privilege escalation in macOS Big Sur
Published: June 21, 2023 Updated: September 12, 2025
Security Bulletin ID
SB2023062151
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Integer overflow (CVE-ID: CVE-2023-32434)
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to an integer overflow within the OS kernel. A local application can trigger an integer overflow and execute arbitrary code with kernel privileges.
Note, the vulnerability is being actively exploited in the wild.
Remediation
Install update from vendor's website.