About the security content of iOS 10.3.1 - Apple Support

About Apple security updates

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Apple security documents reference vulnerabilities by CVE-ID when possible.

iOS 10.3.1

Released April 3, 2017

Wi-Fi

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: An attacker within range may be able to execute arbitrary code on the Wi-Fi chip

Description: A stack buffer overflow was addressed through improved input validation.

CVE-2017-6975: Gal Beniamini of Google Project Zero