CVE-2017-2522: Apple iPhone OS

Critical severity, CVSS 9.8. EPSS: 6.6% chance of exploitation in the next 30 days.

An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. macOS before 10.12.5 is affected. tvOS before 10.2.1 is affected. watchOS before 3.2.2 is affected. The issue involves the "CoreFoundation" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via crafted data.

Affected products

• Apple iPhone OS: before 10.3.2 (fixed in 10.3.2)
• Apple Mac OS X: before 10.12.5 (fixed in 10.12.5)
• Apple tvOS: before 10.2.1 (fixed in 10.2.1)
• Apple watchOS: before 3.2.2 (fixed in 3.2.2)

Published 2017-05-22. Last modified 2026-06-17.