CVE-2020-9929

Name: CVE-2020-9929
Creator: NVD / NIST
Published: 2020-10-22T19:15:15.213+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.32%

Last modified Jun 17, 2026

CVE-2020-9929 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.6. EPSS estimates a 0.32% 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 10.15.6. 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

0.32%

23.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Apple	Mac Os X	< 10.15.6

References

https://support.apple.com/kb/HT211289Vendor Advisory
https://support.apple.com/kb/HT211289Vendor Advisory

Timeline

Published: Oct 22, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-9929?

How severe is CVE-2020-9929?

CVE-2020-9929 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.

How do I fix CVE-2020-9929?

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-2020-9929?

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

Scan your code now

Source: NVD / NIST