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CVE-2021-30968

5.5 · MEDIUM

A validation issue related to hard link behavior was addressed with improved sandbox restrictions.

Published Aug 24, 2021CWE-59EPSS 1.06%

Overview

CVE-2021-30968 is a medium-severity vulnerability. It was published on August 24, 2021 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

A validation issue related to hard link behavior was addressed with improved sandbox restrictions. This issue is fixed in macOS Big Sur 11.6.2, tvOS 15.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2 and iPadOS 15.2, watchOS 8.3. A malicious application may be able to bypass certain Privacy preferences.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refsupport.apple.com/en-us/HT212975Refsupport.apple.com/en-us/HT212976Refsupport.apple.com/en-us/HT212978Refsupport.apple.com/en-us/HT212979Refsupport.apple.com/en-us/HT212980Refsupport.apple.com/en-us/HT212981Refsupport.apple.com/en-us/HT212975Refsupport.apple.com/en-us/HT212976Refsupport.apple.com/en-us/HT212978Refsupport.apple.com/en-us/HT212979

How CyberStrike helps

Frequently asked questions

What is CVE-2021-30968?

CVE-2021-30968 is a medium-severity vulnerability. It was published on August 24, 2021 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2021-30968?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-30968?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-30968?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-30968 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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