Vulnerability · Published Sep 8, 2021 · Assigned by apple

CVE-2021-30668

Medium 4.6

In plain English

A medium-severity security flaw in macOS from Apple. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).

Severity (CVSS NVD)4.6Medium

Exploit odds (30 days)0.3%top 81.0% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
Apple	macOS	unspecified – before 11.4

References

https://support.apple.com/en-us/HT212529 x_refsource_MISC