CVE-2021-30836

Description

An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14.8 and iPadOS 14.8, tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Processing a maliciously crafted audio file may disclose restricted memory.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.21%
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 iOS and iPadOS
Affected: Apple iOS and iPadOS
Affected: Apple tvOS
Affected: Apple watchOS
Published at:
Updated at:

References

Link Tags
https://support.apple.com/en-us/HT212807 release notes vendor advisory
https://support.apple.com/kb/HT212816 vendor advisory
https://support.apple.com/en-us/HT212814 release notes vendor advisory
https://support.apple.com/en-us/HT212819 release notes vendor advisory
https://support.apple.com/en-us/HT212815 release notes vendor advisory
https://support.apple.com/kb/HT212869 vendor advisory
http://www.openwall.com/lists/oss-security/2021/12/20/6 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2021-30836?
CVE-2021-30836 has been scored as a medium severity vulnerability.
How to fix CVE-2021-30836?
To fix CVE-2021-30836, 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-2021-30836 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-30836 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-2021-30836?
CVE-2021-30836 affects Apple iOS and iPadOS, Apple iOS and iPadOS, Apple tvOS, Apple watchOS.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.