WebKitGTK+ has had numerous security vulnerabilities addressed including arbitrary code execution, memory corruption, cookie theft, and various other issues.
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Apple Security Advisory 2017-09-25-8 - iTunes 12.7 for Windows addresses code execution, memory corruption, and various other vulnerabilities.
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Apple Security Advisory 2017-09-25-6 - tvOS 11 addresses denial of service, code execution, and various other vulnerabilities.
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Apple Security Advisory 2017-09-25-3 - Safari 11 addresses address bar spoofing, code execution, and various other vulnerabilities.
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Apple Security Advisory 2017-09-25-2 - iCloud for Windows 7 is now available and addresses memory corruption, arbitrary code execution, and various other vulnerabilities.
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