What is CVE-2021-30668?

CVE-2021-30668 is a medium-severity vulnerability in Apple macOS, classified under Improper Authentication. CVSS score: 4.6/10. Published 2021-09-08.

How severe is CVE-2021-30668?

Medium severity. CVSS v3 base score is 4.6 out of 10.

Auth bypass in Apple macOS

CVE-2021-30668

This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.4. A person with physical access to a Mac may be able to bypass Login Window during a software update.

Vulnerability class: Broken Authentication

EPSS: 0.003 (18.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Apple Macos — versions unspecified

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

product-security@apple.com (x_refsource_MISC, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2021-30668?: CVE-2021-30668 is a medium-severity vulnerability in Apple macOS, classified under Improper Authentication. CVSS score: 4.6/10. Published 2021-09-08.
How severe is CVE-2021-30668?: Medium severity. CVSS v3 base score is 4.6 out of 10.