What’s Vulnerable › Vulnerabilities

CVE-2017-13849

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-11-13 · updated 2026-06-17
• Weakness: CWE-20

Description

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

How to fix

Upgrade to a fixed version: Apple Iphone Os 11.1; Apple tvOS 11.1; Apple watchOS 4.1. Check the vendor advisory for mitigations.

References

• http://www.securityfocus.com/bid/101691
• http://www.securitytracker.com/id/1039703
• https://support.apple.com/HT208219
• https://support.apple.com/HT208220
• https://support.apple.com/HT208222
• https://www.exploit-db.com/exploits/43161/
• http://www.securityfocus.com/bid/101691
• http://www.securitytracker.com/id/1039703
• https://support.apple.com/HT208219
• https://support.apple.com/HT208220
• https://support.apple.com/HT208222
• https://www.exploit-db.com/exploits/43161/

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