CVE-2019-8831

Name: CVE-2019-8831
Creator: NVD / NIST
Published: 2020-10-27T20:15:20.377+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.30%

Last modified Jun 17, 2026

CVE-2019-8831 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 1.30% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

1.30%

66.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Apple	Ipados	< 13.1
Apple	Iphone Os	< 13.1
Apple	Mac Os X	< 10.15.1
Apple	Tvos	< 13.0
Apple	Watchos	< 6.0

References

https://support.apple.com/en-us/HT210603Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210604Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210607Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210634Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210722Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210603Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210604Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210607Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210634Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210722Release Notes, Vendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2019-8831?

How severe is CVE-2019-8831?

CVE-2019-8831 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.30% probability of exploitation in the next 30 days.

How do I fix CVE-2019-8831?

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-2019-8831?

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

Scan your code now

Source: NVD / NIST