PT-2021-2534 · Apple+8 · Apple Macos+11
Published
2021-01-26
·
Updated
2025-10-23
·
CVE-2021-1871
CVSS v3.1
10
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions:
macOS versions prior to 11.2
Security Update versions prior to 2021-001 Catalina
Security Update versions prior to 2021-001 Mojave
iOS versions prior to 14.4
iPadOS versions prior to 14.4
Description:
A logic issue was addressed with improved restrictions, allowing a remote attacker to potentially cause arbitrary code execution. This issue may have been actively exploited. The vulnerability is related to the WebKit module, which is responsible for rendering web pages. An attacker could exploit this issue by creating a specially crafted malicious web page.
Recommendations:
For macOS versions prior to 11.2, update to macOS Big Sur 11.2 or later.
For Security Update versions prior to 2021-001 Catalina, apply Security Update 2021-001 Catalina or later.
For Security Update versions prior to 2021-001 Mojave, apply Security Update 2021-001 Mojave or later.
For iOS versions prior to 14.4, update to iOS 14.4 or later.
For iPadOS versions prior to 14.4, update to iPadOS 14.4 or later.
Exploit
Fix
RCE
Buffer Overflow
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Related Identifiers
Affected Products
Almalinux
Astra Linux
Centos
Linuxmint
Apple Macos
Red Hat
Rocky Linux
Suse
Ubuntu
Webkit
Ios
Ipados