CVE-2021-30767

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.6.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2 and iPadOS 15.2, watchOS 8.3. A local user may be able to modify protected parts of the file system.

• https://support.apple.com/en-us/HT212975Vendor Advisory
• https://support.apple.com/en-us/HT212976Vendor Advisory
• https://support.apple.com/en-us/HT212978Vendor Advisory
• https://support.apple.com/en-us/HT212979Vendor Advisory
• https://support.apple.com/en-us/HT212981Vendor Advisory
• https://support.apple.com/en-us/HT212975Vendor Advisory
• https://support.apple.com/en-us/HT212976Vendor Advisory
• https://support.apple.com/en-us/HT212978Vendor Advisory
• https://support.apple.com/en-us/HT212979Vendor Advisory
• https://support.apple.com/en-us/HT212981Vendor Advisory

Published

Dec 23, 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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