CVE-2021-30807

Known Exploited

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.5.1, iOS 14.7.1 and iPadOS 14.7.1, watchOS 7.6.1. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 17.75% Top 10%
KEV Since 
Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com
Affected: Apple macOS
Affected: Apple macOS
Affected: Apple macOS
Published at:
Updated at:

References

Link Tags
https://support.apple.com/en-us/HT212622 release notes vendor advisory
https://support.apple.com/en-us/HT212623 release notes vendor advisory
https://support.apple.com/en-us/HT212713 release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-30807?
CVE-2021-30807 has been scored as a high severity vulnerability.
How to fix CVE-2021-30807?
To fix CVE-2021-30807, 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-2021-30807 being actively exploited in the wild?
It is confirmed that CVE-2021-30807 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~18% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-30807?
CVE-2021-30807 affects Apple macOS, Apple macOS, Apple macOS.
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