CVE-2021-30668

MEDIUM

4.6

CVSS Score

Published: September 8, 2021 at 02:25 PM UTC

Updated: June 17, 2026 at 03:50 AM UTC

1 product affected across 1 vendormacOS

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Severity

MEDIUM4.6

Exploit prediction

EPSS 0.3%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

macOS · Apple

95%

v < 11.4

Affected range stops below 11.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

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

References (1)

x_refsource_MISCRelease NotesVendor Advisory

Source: [email protected]

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

CVSS

4.6MEDIUM[email protected]

Attack Vector: PHYSICAL
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: HIGH
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-287

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