CVE Vulnerability Advisory Database
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2021-09-08
Apple macOS Gatekeeper Security Bypass and Malware Execution Vulnerability (CVE-2021-30657)
[Affected Scope] macOS Big Sur versions prior to 11.3, and macOS Catalina (without Security Update 2021-002)
[Impact] A malicious, unsigned, and unnotarized application can completely bypass Gatekeeper, File Quarantine, and Notarization checks, leading to arbitrary code execution without user warnings
[Mitigation] Immediately upgrade to macOS Big Sur 11.3 or later, or apply Security Update 2021-002 for macOS Catalina