This document describes the security content of iCloud for Windows 13. 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. iCloud for Windows 13 Available for: Windows 10 and later via the Microsoft Store Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: A memory corruption issue was addressed with improved input validation. CVE-2021-30928: Mickey Jin (@patch1t) of Trend Micro Available for: Windows 10 and later via the Microsoft Store Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A type confusion issue was addressed with improved memory handling. CVE-2021-30852: Yinyi Wu (@3ndy1) of Ant Security Light-Year Lab Available for: Windows 10 and later via the Microsoft Store Impact: Processing a maliciously crafted image may lead to arbitrary code execution

Description: A memory corruption issue was addressed with improved input validation. CVE-2021-30814: hjy79425575 Available for: Windows 10 and later via the Microsoft Store Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: This issue was addressed with improved checks. CVE-2021-30835: Ye Zhang of Baidu Security CVE-2021-30847: Mike Zhang of Pangu Lab Available for: Windows 10 and later via the Microsoft Store Impact: An attacker in a privileged network position may be able to bypass HSTS Description: A logic issue was addressed with improved restrictions. CVE-2021-30823: David Gullasch of Recurity Labs Available for: Windows 10 and later via the Microsoft Store Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: Multiple memory corruption issues were addressed with improved memory handling. CVE-2021-30849: Sergei Glazunov of Google Project Zero Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Contact the vendor for additional information.