CVE-2021-30720

webkitgtk: Logic issue allowing access to restricted ports on arbitrary servers

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Severity

Moderate

Red Hat Product Security

9.3

CVSS 3.1

Review impact separately from score.

Published · July 28, 2021

Updated · November 22, 2025

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.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 9.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

CWE-20 · Improper Input Validation