What’s Vulnerable › Vulnerabilities

CVE-2018-4440

• Severity: medium (CVSS 4.3 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-04-03 · updated 2026-06-17
• Weakness: CWE-20

Description

A logic issue was addressed with improved state management. This issue affected versions prior to iOS 12.1.1, Safari 12.0.2, iTunes 12.9.2 for Windows, iCloud for Windows 7.9.

Affected products

• Apple iCloud for Windows: before 7.9 — fixed in 7.9
• Apple Iphone Os: before 12.1.1 — fixed in 12.1.1
• Apple iTunes for Windows: before 12.9.2 — fixed in 12.9.2
• Apple Safari: before 12.0.2 — fixed in 12.0.2

How to fix

Upgrade to a fixed version: Apple iCloud for Windows 7.9; Apple Iphone Os 12.1.1; Apple iTunes for Windows 12.9.2; Apple Safari 12.0.2. Check the vendor advisory for mitigations.

References

• https://support.apple.com/kb/HT209340
• https://support.apple.com/kb/HT209344
• https://support.apple.com/kb/HT209345
• https://support.apple.com/kb/HT209346
• https://support.apple.com/kb/HT209340
• https://support.apple.com/kb/HT209344
• https://support.apple.com/kb/HT209345
• https://support.apple.com/kb/HT209346

Get alerted when CVE-2018-4440 or the next vulnerability affects your stack