What’s Vulnerable › Vulnerabilities

CVE-2016-4666

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-02-20 · updated 2026-06-17
• Weakness: CWE-119

Description

An issue was discovered in certain Apple products. iOS before 10.1 is affected. Safari before 10.0.1 is affected. tvOS before 10.0.1 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Affected products

• Apple Iphone Os: before 10.1 — fixed in 10.1
• Apple Safari: before 10.0.1 — fixed in 10.0.1
• Apple tvOS: before 10.0.1 — fixed in 10.0.1

How to fix

Upgrade to a fixed version: Apple Iphone Os 10.1; Apple Safari 10.0.1; Apple tvOS 10.0.1. Check the vendor advisory for mitigations.

References

• http://www.securityfocus.com/bid/93851
• http://www.securitytracker.com/id/1037087
• https://support.apple.com/HT207270
• https://support.apple.com/HT207271
• https://support.apple.com/HT207272
• http://www.securityfocus.com/bid/93851
• http://www.securitytracker.com/id/1037087
• https://support.apple.com/HT207270
• https://support.apple.com/HT207271
• https://support.apple.com/HT207272

Get alerted when CVE-2016-4666 or the next vulnerability affects your stack