What’s Vulnerable › Vulnerabilities

CVE-2019-8582

• Severity: medium (CVSS 5.5 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-125

Description

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iCloud for Windows 7.12, tvOS 12.3, iTunes 12.9.5 for Windows, macOS Mojave 10.14.5, Security Update 2019-003 High Sierra, Security Update 2019-003 Sierra, iOS 12.3. Processing a maliciously crafted font may result in the disclosure of process memory.

Affected products

• Apple iCloud for Windows: before 7.12 — fixed in 7.12
• Apple Iphone Os: before 12.3 — fixed in 12.3
• Apple iTunes for Windows: before 12.9.5 — fixed in 12.9.5
• macOS: before 10.14.5 — fixed in 10.14.5
• Apple tvOS: before 12.3 — fixed in 12.3

How to fix

Upgrade to a fixed version: Apple iCloud for Windows 7.12; Apple Iphone Os 12.3; Apple iTunes for Windows 12.9.5; macOS 10.14.5; Apple tvOS 12.3. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/HT210118
• https://support.apple.com/en-us/HT210119
• https://support.apple.com/en-us/HT210120
• https://support.apple.com/en-us/HT210124
• https://support.apple.com/en-us/HT210125
• https://support.apple.com/en-us/HT210118
• https://support.apple.com/en-us/HT210119
• https://support.apple.com/en-us/HT210120
• https://support.apple.com/en-us/HT210124
• https://support.apple.com/en-us/HT210125

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