CVE DATABASE / CVE-2021-30657
CVE-2021-30657
Apple macOS Unspecified Vulnerability
CVSS 5.5 · MEDIUM
⚠ CISA KEV — ACTIVELY EXPLOITED
On the CISA KEV catalog
Confirmed exploited in the wild. Added 2021-11-03.
Federal remediation due 2021-11-17.
Required action: Apply updates per vendor instructions.
Summary
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..
CVSS 3.1 breakdown
| Base score | 5.5 (MEDIUM) |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
| Attack vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | REQUIRED |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity | HIGH |
| Availability | NONE |
Weakness type (CWE)
Affected products
Apple mac os xApple macos
Check this CVE live
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References
- 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
Data: NIST NVD + CISA KEV. NVD last modified 2025-10-23. Always verify against the vendor advisory before acting.