CVE-2017-2448: Apple iPhone OS

Medium severity, CVSS 5.9. EPSS: 1.6% chance of exploitation in the next 30 days.

An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. tvOS before 10.2 is affected. The issue involves the "Keychain" component. It allows man-in-the-middle attackers to bypass an iCloud Keychain secret protection mechanism by leveraging lack of authentication for OTR packets.

Affected products

• Apple iPhone OS: up to and including 10.2.1
• Apple Mac OS X: up to and including 10.12.3
• Apple tvOS: up to and including 10.1.1
• Apple watchOS: up to and including 3.1.3

Published 2017-04-02. Last modified 2026-06-17.