Apple has released security updates for a severe vulnerability affected in Apple Safari, macOS Big Sur, iOS, iPadOS and watchOS.

CVE-2021-1844 — Multiple Apple Products

Multiple Apple products are vulnerable to CVE-2021-1844 — considered as CRITICAL severity, recommended for immediate update.

And, the vulnerable products are:

• Apple Safari
• macOS Big Sur
• iOS
• iPadOS
• watchOS

Also, The vulnerability described with a memory corruption issue was addressed with improved validation.

On the other hand, the product’s impacts with processing maliciously crafted web content may lead to arbitrary code execution.

==> Apple Safari 14.0.3

However, the Apple Versions Prior to Safari 14.0.3

Also, the vulnerable available for: macOS Catalina and macOS Mojave

==> macOS Big Sur 11.2.3

The vulnerable available for: macOS Big Sur

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==> watchOS 7.3.2

The vulnerable available for: Apple Watch Series 3 and later

==> iOS 14.4.1 and iPadOS 14.4.1

Also, the vulnerable available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)

Security Recommendation

All the Apple products are vulnerability with problem type — Boundary Condition problem

In addition, Successful exploitation can enable an attacker to execute arbitrary code on the system.

However, It is recommended Apple user’s to update their products immediately.