CVE-2021-30703

A double free issue was addressed with improved memory management. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave, macOS Big Sur 11.4, watchOS 7.5. An application may be able to execute arbitrary code with kernel privileges.

• CWE-415

• https://support.apple.com/en-us/HT212528Vendor Advisory
• https://support.apple.com/en-us/HT212529Vendor Advisory
• https://support.apple.com/en-us/HT212532Vendor Advisory
• https://support.apple.com/en-us/HT212533Vendor Advisory
• https://support.apple.com/en-us/HT212600Vendor Advisory
• https://support.apple.com/en-us/HT212603Vendor Advisory
• https://support.apple.com/en-us/HT212528Vendor Advisory
• https://support.apple.com/en-us/HT212529Vendor Advisory
• https://support.apple.com/en-us/HT212532Vendor Advisory
• https://support.apple.com/en-us/HT212533Vendor Advisory
• https://support.apple.com/en-us/HT212600Vendor Advisory
• https://support.apple.com/en-us/HT212603Vendor Advisory

Published

Sep 8, 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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