CVE-2020-27904

Name: CVE-2020-27904
Creator: NVD / NIST
Published: 2020-12-08T21:15:13.077+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 3.14%

Last modified Jun 17, 2026

CVE-2020-27904 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A logic issue existed resulting in memory corruption. This was addressed with improved state management. EPSS estimates a 3.14% chance of exploitation in the next 30 days.

Description

A logic issue existed resulting in memory corruption. This was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1. An application may be able to execute arbitrary code with kernel 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

3.14%

86.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Apple	Macos	< 11.0.1

References

http://seclists.org/fulldisclosure/2020/Dec/32Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2021/Feb/14Mailing List, Third Party Advisory
https://support.apple.com/en-us/HT211931Vendor Advisory
https://support.apple.com/kb/HT212147Vendor Advisory
http://seclists.org/fulldisclosure/2020/Dec/32Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2021/Feb/14Mailing List, Third Party Advisory
https://support.apple.com/en-us/HT211931Vendor Advisory
https://support.apple.com/kb/HT212147Vendor Advisory

Timeline

Published: Dec 8, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-27904?

How severe is CVE-2020-27904?

CVE-2020-27904 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 3.14% probability of exploitation in the next 30 days.

How do I fix CVE-2020-27904?

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-2020-27904?

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

Scan your code now

Source: NVD / NIST