CVE-2021-30826 Information

Description

A logic issue was addressed with improved state management. This issue is fixed in iOS 15 and iPadOS 15. In certain situations the baseband would fail to enable integrity and ciphering protection.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

https://support.apple.com/en-us/HT212814 http://seclists.org/fulldisclosure/2021/Oct/61 https://support.apple.com/kb/HT212807

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5