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CVE-2021-30702

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur...

4.6 Medium

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. A person with physical access to a Mac may be able to bypass Login Window.

Attack profile

How easy it is to exploit

Attack vector
Physical
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
None

Exploit likelihood

0.30%Down 0.5 points since Sep 9, 2021
90%50%10%1%

What each source reports

NVD Score used4.6

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. A person with physical access to a Mac may be able to bypass Login Window.

Record
CVE-2021-30702
CVSS 3.1
4.6 MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0
2.1 LowAV:L/AC:L/Au:N/C:N/I:P/A:N
Weakness
CWE-287
Updated
2026-11-02
CVE ListNo score

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. A person with physical access to a Mac may be able to bypass Login Window.

Record
CVE-2021-30702
Updated
2026-11-02
EUVDEUVD-2021-17619No score

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. A person with physical access to a Mac may be able to bypass Login Window.

Record
EUVD-2021-17619
Updated
2026-11-03
GitHub AdvisoriesGHSA-qq7x-7h3g-gmhcNo score

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur...

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. A person with physical access to a Mac may be able to bypass Login Window.

Record
GHSA-qq7x-7h3g-gmhc
Weakness
CWE-287
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-30702 is a medium vulnerability (CVSS 4.6) in Apple Macos, published September 8, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.30%, the 22nd percentile. No source names a fixed version.

References

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