What’s Vulnerable › Vulnerabilities

CVE-2019-8759

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% 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 macOS Catalina 10.15.1, Security Update 2019-001, and Security Update 2019-006, macOS Catalina 10.15. A local user may be able to cause unexpected system termination or read kernel memory.

Affected products

• macOS: before 10.15.1 — fixed in 10.15.1

How to fix

Upgrade to a fixed version: macOS 10.15.1. Check the vendor advisory for mitigations.

References

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

Get alerted when CVE-2019-8759 or the next vulnerability affects your stack