What’s Vulnerable › Vulnerabilities

CVE-2019-8831

• Severity: high (CVSS 7.8 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

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15, iOS 13.1 and iPadOS 13.1, tvOS 13, macOS Catalina 10.15.1, Security Update 2019-001, and Security Update 2019-006, watchOS 6. An application may be able to execute arbitrary code with system privileges.

Affected products

• Apple iPadOS: before 13.1 — fixed in 13.1
• Apple Iphone Os: before 13.1 — fixed in 13.1
• macOS: before 10.15.1 — fixed in 10.15.1
• Apple tvOS: before 13.0 — fixed in 13.0
• Apple watchOS: before 6.0 — fixed in 6.0

How to fix

Upgrade to a fixed version: Apple iPadOS 13.1; Apple Iphone Os 13.1; macOS 10.15.1; Apple tvOS 13.0; Apple watchOS 6.0. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/HT210603
• https://support.apple.com/en-us/HT210604
• https://support.apple.com/en-us/HT210607
• https://support.apple.com/en-us/HT210634
• https://support.apple.com/en-us/HT210722
• https://support.apple.com/en-us/HT210603
• https://support.apple.com/en-us/HT210604
• https://support.apple.com/en-us/HT210607
• https://support.apple.com/en-us/HT210634
• https://support.apple.com/en-us/HT210722

Get alerted when CVE-2019-8831 or the next vulnerability affects your stack