Is CVE-2021-30657 actively exploited?

CVE-2021-30657 has no public evidence of in-the-wild exploitation as of 2025-10-23.

What is the CVSS score for CVE-2021-30657?

CVE-2021-30657 has a CVSS score of 5.5 (MEDIUM severity). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

How do I patch CVE-2021-30657?

Patch guidance is available from apple security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-30657.

CVE-2021-30657 - remediation guidance & executive summary

Q: Which products are affected by CVE-2021-30657?

10 products: apple mac os x, apple mac os x, apple mac os x, apple mac os x, apple mac os x, and 5 more.

Description

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 Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Attack Vector: local
Complexity: low
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: none
Integrity: high
Availability: none
Weaknesses: NVD-CWE-noinfoCWE-862 · Missing Authorization

Metadata

Primary Vendor: APPLE
Published: 9/8/2021
Last Modified: 10/23/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

apple : mac_os_xapple : mac_os_xapple : mac_os_xapple : mac_os_xapple : mac_os_xapple : mac_os_xapple : mac_os_xapple : mac_os_xapple : mac_os_xapple : macos

Remediation Guidance

Executive Summary

View on NIST NVD