A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.5, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave. An application may be able to execute arbitrary code with kernel privileges.

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.5, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave. An application may be able to execute arbitrary code with kernel privileges.

A flaw was found in WebKitGTK.

Impact: A remote attacker may be able to cause arbitrary code execution. Description: A logic issue was addressed with improved restrictions.

Reference: https://webkitgtk.org/security/WSA-2021-0002.html

A flaw was found in WebKitGTK.

Impact: A remote attacker may be able to cause arbitrary code execution. Description: A logic issue was addressed with improved restrictions.

Reference: https://webkitgtk.org/security/WSA-2021-0003.html

CoreBluetooth. A memory corruption issue was addressed with improved input validation.

CoreBluetooth. A memory corruption issue was addressed with improved input validation.

CoreBluetooth. A memory corruption issue was addressed with improved input validation.

CoreBluetooth. An out-of-bounds read was addressed with improved input validation.

apachemodphp. Multiple issues were addressed by updating to PHP version 7.3.11.

libxml2. A buffer overflow was addressed with improved bounds checking.

libxml2. A buffer overflow was addressed with improved bounds checking.

libxml2. A buffer overflow was addressed with improved size validation.

Vim. Multiple issues were addressed by updating to version 8.1.1850.

Last updated 25 August 2025

Last updated 25 August 2025

Last updated 25 August 2025

AMD Kernel. A memory corruption issue was addressed with improved input validation.

AMD Kernel. A memory corruption issue was addressed with improved input validation.

ActionKit. An input validation issue was addressed with improved input validation.

AMD Kernel. A memory corruption issue was addressed with improved input validation.

AMD Kernel. A memory corruption issue was addressed with improved input validation.

ActionKit. An input validation issue was addressed with improved input validation.

Last updated 25 August 2025

A flaw was found in WebKitGTK.

Impact: Processing maliciously crafted web content may lead to arbitrary code execution. Description: A type confusion issue was addressed with improved state handling.

Reference: https://webkitgtk.org/security/WSA-2021-0002.html

AMD Kernel. A memory corruption issue was addressed with improved input validation.

libxml2. A buffer overflow was addressed with improved size validation.

AppleMobileFileIntegrity. This issue was addressed with improved checks.

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 12.4.7, watchOS 5.3.7. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.

Perl before 5.30.3 has an integer overflow related to mishandling of a "PLregkind[OP(n)] == NOTHING" situation. A crafted regular expression could lead to malformed bytecode with a possibility of instruction injection.

A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 12.5.5, iOS 14.4 and iPadOS 14.4, macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, Security Update 2021-006 Catalina. A malicious application may be able to execute arbitrary code with kernel privileges. Apple is aware of reports that an exploit for this issue exists in the wild.