CVE-2021-30837

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.

• 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

Published

Oct 19, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

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• CVE-2021-30832A memory corruption issue was addressed with improved state …7.8
• CVE-2021-30833This issue was addressed with improved checks. This issue is…5.5
• CVE-2021-30834A logic issue was addressed with improved state management. …7.8
• CVE-2021-30835This issue was addressed with improved checks. This issue is…7.8
• CVE-2021-30836An out-of-bounds read was addressed with improved input vali…5.5
• CVE-2021-30838A memory corruption issue was addressed with improved memory…7.8
• CVE-2021-30840This issue was addressed with improved checks. This issue is…7.8
• CVE-2021-30841This issue was addressed with improved checks. This issue is…7.8
• CVE-2021-30842This issue was addressed with improved checks. This issue is…7.8
• CVE-2021-30843This issue was addressed with improved checks. This issue is…7.8
• CVE-2021-30844A logic issue was addressed with improved state management. …7.5