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CVE-2021-30720

Date: September 8, 2021

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.

Severity Score

Related Resources (11)

https://support.apple.com/en-us/HT212529
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-30720
https://nvd.nist.gov/vuln/detail/CVE-2021-30720
https://support.apple.com/en-us/HT212528
https://security-tracker.debian.org/tracker/CVE-2021-30720
https://support.apple.com/en-us/HT212532
https://support.apple.com/en-us/HT212533
https://security.alpinelinux.org/vuln/CVE-2021-30720
https://support.apple.com/en-us/HT212534
https://access.redhat.com/security/cve/CVE-2021-30720
https://www.mend.io/vulnerability-database/CVE-2021-30720

Severity Score

Weakness Type (CWE)

Authentication Issues

CWE-287

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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