What’s Vulnerable › Vulnerabilities

CVE-2019-8734

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% 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-787

Description

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 13, iCloud for Windows 7.14, iCloud for Windows 10.7, Safari 13, tvOS 13, watchOS 6, iTunes 12.10.1 for Windows. Processing maliciously crafted web content may lead to arbitrary code execution.

Affected products

• Apple iCloud for Windows: before 7.14; from 10.0 before 10.7 — fixed in 10.7, 7.14
• Apple Iphone Os: before 13.0 — fixed in 13.0
• Apple iTunes for Windows: before 12.10.1 — fixed in 12.10.1
• Apple Safari: before 13.0 — fixed in 13.0
• Apple tvOS: before 13 — fixed in 13
• Apple watchOS: before 6.0 — fixed in 6.0

How to fix

Upgrade to a fixed version: Apple iCloud for Windows 10.7, 7.14; Apple Iphone Os 13.0; Apple iTunes for Windows 12.10.1; Apple Safari 13.0; Apple tvOS 13; Apple watchOS 6.0. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/HT210604
• https://support.apple.com/en-us/HT210606
• https://support.apple.com/en-us/HT210607
• https://support.apple.com/en-us/HT210608
• https://support.apple.com/en-us/HT210635
• https://support.apple.com/en-us/HT210636
• https://support.apple.com/en-us/HT210637
• https://support.apple.com/en-us/HT210604
• https://support.apple.com/en-us/HT210606
• https://support.apple.com/en-us/HT210607
• https://support.apple.com/en-us/HT210608
• https://support.apple.com/en-us/HT210635

Get alerted when CVE-2019-8734 or the next vulnerability affects your stack