What’s Vulnerable › Vulnerabilities
CVE-2021-30668
- Severity: medium (CVSS 4.6 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-09-08 · updated 2026-06-17
- Weakness: CWE-287
Description
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.
Affected products
- Apple macOS: before 11.4 — fixed in 11.4
How to fix
Upgrade to a fixed version: Apple macOS 11.4. Check the vendor advisory for mitigations.
References
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