CVE-2021-30720

Description

A logic issue was addressed with improved restrictions. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Safari 14.1.1, macOS Big Sur 11.4, watchOS 7.5. A malicious website may be able to access restricted ports on arbitrary servers.

References

Link	Tags
https://support.apple.com/en-us/HT212528	vendor advisory
https://support.apple.com/en-us/HT212529	vendor advisory
https://support.apple.com/en-us/HT212532	vendor advisory
https://support.apple.com/en-us/HT212533	vendor advisory
https://support.apple.com/en-us/HT212534	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-30720?: CVE-2021-30720 has been scored as a medium severity vulnerability.
How to fix CVE-2021-30720?: To fix CVE-2021-30720, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-30720 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-30720 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-30720?: CVE-2021-30720 affects Apple iOS and iPadOS, Apple macOS, Apple macOS, Apple macOS, Apple macOS.

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Description

Category

CWE-287 – Improper Authentication

References

Frequently Asked Questions