CVE-2021-30937

Description

A memory corruption vulnerability was addressed with improved locking. This issue is fixed in macOS Big Sur 11.6.2, tvOS 15.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2 and iPadOS 15.2, watchOS 8.3. A malicious application may be able to execute arbitrary code with kernel privileges.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 29.22% Top 5%
Affected: Apple watchOS
Affected: Apple iOS and iPadOS
Affected: Apple macOS
Affected: Apple macOS
Affected: Apple macOS
Affected: Apple macOS
Published at:
Updated at:

References

Link Tags
https://support.apple.com/en-us/HT212975
https://support.apple.com/en-us/HT212976
https://support.apple.com/en-us/HT212978
https://support.apple.com/en-us/HT212979
https://support.apple.com/en-us/HT212981
https://support.apple.com/en-us/HT212980
http://packetstormsecurity.com/files/165475/XNU-inm_merge-Heap-Use-After-Free.html

Frequently Asked Questions

What is the severity of CVE-2021-30937?
CVE-2021-30937 has been scored as a high severity vulnerability.
How to fix CVE-2021-30937?
To fix CVE-2021-30937, 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-2021-30937 being actively exploited in the wild?
It is possible that CVE-2021-30937 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~29% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-30937?
CVE-2021-30937 affects Apple watchOS, Apple iOS and iPadOS, Apple macOS, Apple macOS, Apple macOS, Apple macOS.
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