CVE-2021-30657 is a vulnerability in Apple macOS
Published on September 8, 2021
A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina. A malicious application may bypass Gatekeeper checks. Apple is aware of a report that this issue may have been actively exploited..
Known Exploited Vulnerability
This Apple macOS Policy Subsystem Gatekeeper Bypass vulnerability is part of CISA's list of Known Exploited Vulnerabilities. A malicious application may bypass Gatekeeper checks. Apple is aware of a report that this issue may have been actively exploited.
The following remediation steps are recommended / required by November 17, 2021: Apply updates per vendor instructions.
Vulnerability Analysis
CVE-2021-30657 can be exploited with local system access, requires user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity, and no impact on availability.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2021-30657 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2021-30657
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Affected Versions
Apple macOS:- Version unspecified and below 11.3 is affected.
- Version unspecified and below 2021 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.