CVE-2017-13849: Apple iPhone OS

Medium severity, CVSS 5.5. EPSS: 3.9% chance of exploitation in the next 30 days.

An issue was discovered in certain Apple products. iOS before 11.1 is affected. tvOS before 11.1 is affected. watchOS before 4.1 is affected. The issue involves the "CoreText" component. It allows remote attackers to cause a denial of service (application crash) via a crafted text file.

Affected products

• Apple iPhone OS: before 11.1 (fixed in 11.1)
• Apple tvOS: before 11.1 (fixed in 11.1)
• Apple watchOS: before 4.1 (fixed in 4.1)

Published 2017-11-13. Last modified 2026-06-17.