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.
iCloud for Windows 6.2.1
Released May 15, 2017
Available for: Windows 7 and later
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
CVE-2017-2530: Wei Yuan of Baidu Security Lab, Zheng Huang of the Baidu Security Lab working with Trend Micro’s Zero Day Initiative
Entry updated June 20, 2017