What’s Vulnerable › Vulnerabilities

CVE-2018-4302

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-12-23 · updated 2026-06-17
• Weakness: CWE-476

Description

A null pointer dereference was addressed with improved validation. This issue is fixed in macOS High Sierra 10.13, iCloud for Windows 7.0, watchOS 4, iOS 11, iTunes 12.7 for Windows. Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution.

Affected products

• Apple iCloud for Windows: through 7.0
• Apple Iphone Os: before 11 — fixed in 11
• Apple iTunes for Windows: before 12.7 — fixed in 12.7
• macOS: before 10.13 — fixed in 10.13
• Apple watchOS: before 4 — fixed in 4

How to fix

Upgrade to a fixed version: Apple Iphone Os 11; Apple iTunes for Windows 12.7; macOS 10.13; Apple watchOS 4. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/HT208112
• https://support.apple.com/en-us/HT208115
• https://support.apple.com/en-us/HT208141
• https://support.apple.com/en-us/HT208142
• https://support.apple.com/en-us/HT208144
• https://support.apple.com/en-us/HT208112
• https://support.apple.com/en-us/HT208115
• https://support.apple.com/en-us/HT208141
• https://support.apple.com/en-us/HT208142
• https://support.apple.com/en-us/HT208144

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