CVE-2020-9885 Information

Description

An issue existed in the handling of iMessage tapbacks. The issue was resolved with additional verification. This issue is fixed in iOS 13.6 and iPadOS 13.6 macOS Catalina 10.15.6 tvOS 13.4.8 watchOS 6.2.8. A user that is removed from an iMessage group could rejoin the group.

CVSS Vector

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

Reference

https://support.apple.com/HT211288 https://support.apple.com/HT211289 https://support.apple.com/HT211290 https://support.apple.com/HT211291

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

5.5