CVE-2019-8759

Name: CVE-2019-8759
Creator: NVD / NIST
Published: 2020-10-27T20:15:18.94+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.28%

Last modified Jun 17, 2026

CVE-2019-8759 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. 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. EPSS estimates a 0.28% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.1/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

EPSS Probability

0.28%

19.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Apple	Mac Os X	< 10.15.1

References

https://support.apple.com/en-us/HT210634Vendor Advisory
https://support.apple.com/en-us/HT210722Vendor Advisory
https://support.apple.com/en-us/HT210634Vendor Advisory
https://support.apple.com/en-us/HT210722Vendor Advisory

Timeline

Published: Oct 27, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-8759?

How severe is CVE-2019-8759?

CVE-2019-8759 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.28% probability of exploitation in the next 30 days.

How do I fix CVE-2019-8759?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-8759?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST