CVE-2021-1770 Information

Description

A buffer overflow may result in arbitrary code execution. This issue is fixed in macOS Big Sur 11.3 iOS 14.5 and iPadOS 14.5 watchOS 7.4 tvOS 14.5. A logic issue was addressed with improved state management.

CVSS Vector

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

Reference

https://support.apple.com/en-us/HT212317 https://support.apple.com/en-us/HT212325 https://support.apple.com/en-us/HT212323 https://support.apple.com/en-us/HT212324

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8