CVE-2021-30837

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 15 and iPadOS 15, watchOS 8, tvOS 15. An application may be able to execute arbitrary code with kernel privileges.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected software

Vendor	Product	Versions
Apple	iOS and iPadOS	>= unspecified, < 15
Apple	tvOS	>= unspecified, < 15
Apple	watchOS	>= unspecified, < 8

References

http://seclists.org/fulldisclosure/2021/Oct/61Mailing List, Release Notes, Third Party Advisory
http://seclists.org/fulldisclosure/2021/Oct/62Mailing List, Release Notes, Third Party Advisory
http://seclists.org/fulldisclosure/2021/Oct/63Mailing List, Release Notes, Third Party Advisory
https://support.apple.com/en-us/HT212814Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT212815Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT212819Release Notes, Vendor Advisory
http://seclists.org/fulldisclosure/2021/Oct/61Mailing List, Release Notes, Third Party Advisory
http://seclists.org/fulldisclosure/2021/Oct/62Mailing List, Release Notes, Third Party Advisory
http://seclists.org/fulldisclosure/2021/Oct/63Mailing List, Release Notes, Third Party Advisory
https://support.apple.com/en-us/HT212814Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT212815Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT212819Release Notes, Vendor Advisory

Timeline

Published: Oct 19, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

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