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.
For more information about security, see the Apple Product Security page. You can encrypt communications with Apple using the Apple Product Security PGP Key.
Apple security documents reference vulnerabilities by CVE-ID when possible.
iCloud for Windows 6.2
Released March 28, 2017
APNs Server
Available for: Windows 7 and later
Impact: An attacker in a privileged network position can track a user's activity
Description: A client certificate was sent in plaintext. This issue was addressed through improved certificate handling.
CVE-2017-2383: Matthias Wachs and Quirin Scheitle of Technical University Munich (TUM)
libxslt
Available for: Windows 7 and later
Impact: Multiple vulnerabilities in libxslt
Description: Multiple memory corruption issues were addressed through improved memory handling.
CVE-2017-5029: Holger Fuhrmannek
WebKit
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 through improved memory handling.
CVE-2017-2463: Kai Kang (4B5F5F4B) of Tencent's Xuanwu Lab (tencent.com) working with Trend Micro's Zero Day Initiative
WebKit
Available for: Windows 7 and later
Impact: Processing maliciously crafted web content may exfiltrate data cross-origin
Description: A validation issue existed in element handling. This issue was addressed through improved validation.
CVE-2017-2479: lokihardt of Google Project Zero
CVE-2017-2480: lokihardt of Google Project Zero
CVE-2017-2493: lokihardt of Google Project Zero
Entry updated April 24, 2017