What’s Vulnerable › Vulnerabilities

CVE-2018-4278

• Severity: medium (CVSS 4.3 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-01-11 · updated 2026-06-17

Description

In Safari before 11.1.2, iTunes before 12.8 for Windows, iOS before 11.4.1, tvOS before 11.4.1, iCloud for Windows before 7.6, sound fetched through audio elements may be exfiltrated cross-origin. This issue was addressed with improved audio taint tracking.

Affected products

• Apple iCloud for Windows: before 7.6 — fixed in 7.6
• Apple Iphone Os: before 11.4.1 — fixed in 11.4.1
• Apple iTunes for Windows: before 12.8 — fixed in 12.8
• Apple Safari: before 11.1.2 — fixed in 11.1.2
• Apple tvOS: before 11.4.1 — fixed in 11.4.1
• Canonical Ubuntu Linux: 16.04, 18.04

How to fix

Upgrade to a fixed version: Apple iCloud for Windows 7.6; Apple Iphone Os 11.4.1; Apple iTunes for Windows 12.8; Apple Safari 11.1.2; Apple tvOS 11.4.1. Check the vendor advisory for mitigations.

References

• http://www.securitytracker.com/id/1041232
• https://security.gentoo.org/glsa/201808-04
• https://support.apple.com/HT208932
• https://support.apple.com/HT208933%2C
• https://support.apple.com/HT208934%2C
• https://support.apple.com/HT208936%2C
• https://support.apple.com/HT208938%2C
• https://usn.ubuntu.com/3743-1/
• https://exchange.xforce.ibmcloud.com/vulnerabilities/146479
• http://www.securitytracker.com/id/1041232
• https://security.gentoo.org/glsa/201808-04
• https://support.apple.com/HT208932

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