What’s Vulnerable › Vulnerabilities

CVE-2018-4474

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-10-27 · updated 2026-06-17
• Weakness: CWE-400

Description

A memory consumption issue was addressed with improved memory handling. This issue is fixed in iCloud for Windows 7.7, watchOS 5, Safari 12, iOS 12, iTunes 12.9 for Windows, tvOS 12. Unexpected interaction causes an ASSERT failure.

Affected products

• Apple iCloud for Windows: before 7.7 — fixed in 7.7
• Apple Iphone Os: before 12.0 — fixed in 12.0
• Apple iTunes for Windows: before 12.9 — fixed in 12.9
• Apple Safari: before 12 — fixed in 12
• Apple tvOS: before 12 — fixed in 12
• Apple watchOS: before 5.0 — fixed in 5.0

How to fix

Upgrade to a fixed version: Apple iCloud for Windows 7.7; Apple Iphone Os 12.0; Apple iTunes for Windows 12.9; Apple Safari 12; Apple tvOS 12; Apple watchOS 5.0. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/HT209106
• https://support.apple.com/en-us/HT209107
• https://support.apple.com/en-us/HT209108
• https://support.apple.com/en-us/HT209109
• https://support.apple.com/en-us/HT209140
• https://support.apple.com/en-us/HT209141
• https://support.apple.com/en-us/HT209106
• https://support.apple.com/en-us/HT209107
• https://support.apple.com/en-us/HT209108
• https://support.apple.com/en-us/HT209109
• https://support.apple.com/en-us/HT209140
• https://support.apple.com/en-us/HT209141

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