About Apple security updates
For our customers' protection, Apple doesn't disclose, discuss or confirm security issues until an investigation has taken place 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 7.21
Released 24 September 2020
Available for: Windows 7 and later
Impact: processing maliciously crafted web content may lead to a cross-site scripting attack
Description: an input validation issue was addressed with improved input validation.
CVE-2020-9952: Ryan Pickren (ryanpickren.com)