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CVE-2021-30657: Apple macOS Unspecified Vulnerability

criticalknown exploitedpublic exploitCVE-2021-30657
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Apple macOS contains an unspecified logic issue in System Preferences that may allow a malicious application to bypass Gatekeeper checks.

CSIRTS triage

vendor: Appleproduct: macOSAuthentication bypass
What
Apple macOS contains an unspecified logic issue that may allow bypassing Gatekeeper checks.
Who is affected
Users of macOS are affected by this vulnerability.
Urgency
This critical vulnerability is actively exploited, making prompt remediation necessary.
Action
Update to the latest version of macOS.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2021-11-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-30657

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2021-30657coverage & exploitation statusNVD · CVE.org

Recent advisories for Apple macOS Unspecified

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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