CVE-2020-27897

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, macOS Big Sur 11.0.1. An application may be able to execute arbitrary code with kernel privileges.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.10%
Vendor Advisory apple.com Vendor Advisory apple.com
Affected: Apple macOS
Affected: Apple macOS
Published at:
Updated at:

References

Link Tags
https://support.apple.com/en-us/HT211931 vendor advisory
https://support.apple.com/en-us/HT212011 vendor advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-486/ third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2020-27897?
CVE-2020-27897 has been scored as a high severity vulnerability.
How to fix CVE-2020-27897?
To fix CVE-2020-27897, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-27897 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-27897 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-27897?
CVE-2020-27897 affects Apple macOS, Apple macOS.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.