CVE-2021-30780

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7, Security Update 2021-005 Mojave, Security Update 2021-004 Catalina. A malicious application may be able to gain root privileges.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.38%
Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com
Affected: Apple Security Update - Catalina
Affected: Apple iOS
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/HT212601 release notes vendor advisory
https://support.apple.com/en-us/HT212602 release notes vendor advisory
https://support.apple.com/en-us/HT212605 release notes vendor advisory
https://support.apple.com/en-us/HT212600 release notes vendor advisory
https://support.apple.com/en-us/HT212603 release notes vendor advisory
https://support.apple.com/en-us/HT212604 release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-30780?
CVE-2021-30780 has been scored as a high severity vulnerability.
How to fix CVE-2021-30780?
To fix CVE-2021-30780, 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-2021-30780 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-30780 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-2021-30780?
CVE-2021-30780 affects Apple Security Update - Catalina, Apple iOS, Apple macOS, Apple macOS, Apple macOS, Apple macOS.
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