What is CVE-2021-21047?

CVE-2021-21047 is an Out-of-bounds Write vulnerability in Adobe Photoshop versions 21.2.4 (and earlier) and 22.1.1 (and earlier) that allows an unauthenticated attacker to achieve arbitrary code execution.

How severe is CVE-2021-21047?

CVE-2021-21047 has a severity rating of 7.8 out of 10, indicating a critical vulnerability.

How can an attacker exploit CVE-2021-21047?

An unauthenticated attacker can exploit CVE-2021-21047 to achieve arbitrary code execution by leveraging the Out-of-bounds Write vulnerability.

Is Apple macOS and Microsoft Windows affected by CVE-2021-21047?

No, Apple macOS and Microsoft Windows are not vulnerable to CVE-2021-21047.

Vulnerability/
CVE-2021-21047

critical

9.3

CWE

787

11/2/2021

16/9/2024

CVE-2021-21047: Adobe Photoshop Out-Of-Bounds Write Vulnerability Could Lead To Remote Code Execution

First published: Thu Feb 11 2021(Updated: )

Adobe Photoshop versions 21.2.4 (and earlier) and 22.1.1 (and earlier) are affected by an Out-of-bounds Write vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Credit: psirt@adobe.com

Affected Software	Affected Version	How to fix
Adobe Photoshop	<=21.2.4
Adobe Photoshop	>=22.0<=22.1.1
Apple macOS
Microsoft Windows

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Reference Links

https://helpx.adobe.com/security/products/photoshop/apsb21-10.html

Frequently Asked Questions

What is CVE-2021-21047?
CVE-2021-21047 is an Out-of-bounds Write vulnerability in Adobe Photoshop versions 21.2.4 (and earlier) and 22.1.1 (and earlier) that allows an unauthenticated attacker to achieve arbitrary code execution.
How severe is CVE-2021-21047?
CVE-2021-21047 has a severity rating of 7.8 out of 10, indicating a critical vulnerability.
Which versions of Adobe Photoshop are affected by CVE-2021-21047?
Adobe Photoshop versions 21.2.4 (and earlier) and 22.1.1 (and earlier) are affected by CVE-2021-21047.
How can an attacker exploit CVE-2021-21047?
An unauthenticated attacker can exploit CVE-2021-21047 to achieve arbitrary code execution by leveraging the Out-of-bounds Write vulnerability.
Is Apple macOS and Microsoft Windows affected by CVE-2021-21047?
No, Apple macOS and Microsoft Windows are not vulnerable to CVE-2021-21047.

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vendor/adobe
canonical/adobe photoshop
version/adobe photoshop/21.2.4
version/adobe photoshop/22.0
version/adobe photoshop/22.1.1
vendor/apple
canonical/apple macos
vendor/microsoft
canonical/microsoft windows

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