About Apple security updates
For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security updates page.
Apple security documents reference vulnerabilities by CVE-ID when possible.
For more information about security, see the Apple Product Security page.

Security Update 2022-001 Catalina
Released January 26, 2022
Kernel
Available for: macOS Catalina
Impact: A malicious application may be able to execute arbitrary code with kernel privileges
Description: A buffer overflow issue was addressed with improved memory handling.
CVE-2022-22593: Peter Nguyễn Vũ Hoàng of STAR Labs
Model I/O
Available for: macOS Catalina
Impact: Processing a maliciously crafted STL file may lead to unexpected application termination or arbitrary code execution
Description: An information disclosure issue was addressed with improved state management.
CVE-2022-22579: Mickey Jin (@patch1t) of Trend Micro
PackageKit
Available for: macOS Catalina
Impact: An application may be able to access restricted files
Description: A permissions issue was addressed with improved validation.
CVE-2022-22583: Ron Hass (@ronhass7) of Perception Point, Mickey Jin (@patch1t)
Entry updated May 25, 2022
Sandbox
Available for: macOS Catalina
Impact: A malicious application may be able to bypass certain Privacy preferences
Description: A logic issue was addressed with improved restrictions.
CVE-2021-30946: @gorelics
Entry updated May 25, 2022
TCC
Available for: macOS Catalina
Impact: A malicious application may be able to bypass certain Privacy preferences
Description: This issue was addressed with improved checks.
CVE-2021-30972: Xuxiang Yang (@another1024), Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020) of Tencent Security Xuanwu Lab (xlab.tencent.com), Csaba Fitzl (@theevilbit) of Offensive Security, jhftss (@patch1t), Wojciech Reguła (@_r3ggi)
Entry updated May 25, 2022

Additional recognition
PackageKit
We would like to acknowledge Mickey Jin (@patch1t) of Trend Micro for their assistance.