CVE-2021-1871

Published Apr 2, 2021

Last updated 4 months ago

Overview

Description
A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
Source
product-security@apple.com
NVD status
Analyzed

Social media

Hype score
Not currently trending

Risk scores

CVSS 3.1

Type
Primary
Base score
9.8
Impact score
5.9
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity
CRITICAL

CVSS 2.0

Type
Primary
Base score
7.5
Impact score
6.4
Exploitability score
10
Vector string
AV:N/AC:L/Au:N/C:P/I:P/A:P

Known exploits

Data from CISA

Vulnerability name
Apple iOS, iPadOS, and macOS WebKit Remote Code Execution Vulnerability
Exploit added on
Nov 3, 2021
Exploit action due
Nov 17, 2021
Required action
Apply updates per vendor instructions.

Weaknesses

nvd@nist.gov
NVD-CWE-noinfo

Configurations