CVE-2021-30657

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..

Affected

Apple · macOS

CVSS v3.1 NVD

5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

CVSS v2.0 NVD

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N

EPSS

68.53% chance of exploitation in the next 30 days, 99th percentile

CISA KEV

added 2021-11-03

Published

2021-09-08

Updated

2025-10-21

Proof-of-concept exploits (2)

• shubham0d/CVE-2021-3065729★ · 2021-11-08
• shubham0d/CVE-2021-308532★ · 2022-01-02

Metasploit modules (1)

• rapid7/metasploit-framework/blob/master/modules/exploits/osx/browser/osx_gatekeeper_bypas…

Security advisories

• https://support.apple.com/en-us/HT212325
• https://support.apple.com/en-us/HT212326
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30657

References

• CVE Record
• NVD entry

Related

• CVE-2020-1048
• CVE-2020-1301
• CVE-2020-3153
• CVE-2020-7257
• CVE-2021-28312
• CVE-2021-30853