CVE-2021-30736

Description

A buffer overflow was addressed with improved size validation. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. 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 0.80% Top 30%
Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com
Affected: Apple iOS and iPadOS
Affected: Apple macOS
Affected: Apple macOS
Affected: Apple macOS
Published at:
Updated at:

References

Link Tags
https://support.apple.com/en-us/HT212528 vendor advisory
https://support.apple.com/en-us/HT212529 vendor advisory
https://support.apple.com/en-us/HT212532 vendor advisory
https://support.apple.com/en-us/HT212533 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-30736?
CVE-2021-30736 has been scored as a high severity vulnerability.
How to fix CVE-2021-30736?
To fix CVE-2021-30736, 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-2021-30736 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-30736 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-30736?
CVE-2021-30736 affects Apple iOS and iPadOS, Apple macOS, Apple macOS, Apple macOS.
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