CVE-2021-30805

Description

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.5, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave. An application may be able to execute arbitrary code with kernel privileges.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.61% Top 20%
Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com
Affected: Apple Security Update - Catalina
Affected: Apple macOS
Affected: Apple macOS
Published at:
Updated at:

References

Link Tags
https://support.apple.com/en-us/HT212602 vendor advisory
https://support.apple.com/en-us/HT212600 vendor advisory
https://support.apple.com/en-us/HT212603 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-30805?
CVE-2021-30805 has been scored as a critical severity vulnerability.
How to fix CVE-2021-30805?
To fix CVE-2021-30805, 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-2021-30805 being actively exploited in the wild?
It is possible that CVE-2021-30805 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-30805?
CVE-2021-30805 affects Apple Security Update - Catalina, Apple macOS, Apple macOS.
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