CVE-2021-30821

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.0.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.

7.8

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.29%

Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com

Affected: Apple macOS

References

Link	Tags
https://support.apple.com/en-us/HT212869	vendor advisory
https://support.apple.com/en-us/HT212871	vendor advisory
https://support.apple.com/en-us/HT212872	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-30821?: CVE-2021-30821 has been scored as a high severity vulnerability.
How to fix CVE-2021-30821?: To fix CVE-2021-30821, 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-2021-30821 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-30821 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-2021-30821?: CVE-2021-30821 affects Apple macOS, Apple macOS, Apple macOS.

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