What is the severity of CVE-2021-34956?

CVE-2021-34956 is classified as a critical vulnerability due to its potential for remote code execution.

How do I fix CVE-2021-34956?

To fix CVE-2021-34956, users should update their Foxit PDF Editor to the latest version provided by the vendor.

Who is affected by CVE-2021-34956?

CVE-2021-34956 specifically affects users of Foxit PDF Editor for Mac.

What type of vulnerability is CVE-2021-34956?

CVE-2021-34956 is a use-after-free vulnerability that can lead to arbitrary code execution.

Is user interaction required to exploit CVE-2021-34956?

Yes, user interaction is required to exploit CVE-2021-34956 as it involves the manipulation of PDF files.

Vulnerability/
CVE-2021-34956

high

7.8

CWE

416

7/5/2024

4/8/2024

22/2/2025

CVE-2021-34956: Foxit PDF Editor Underline Annotation Use-After-Free Remote Code Execution Vulnerability

First published: Tue May 07 2024(Updated: )

Foxit PDF Editor Underline Annotation Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of Annotation objects. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14357.

Credit: zdi-disclosures@trendmicro.com

Affected Software	Affected Version	How to fix
Foxit PDF Editor for Mac

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-34956?
CVE-2021-34956 is classified as a critical vulnerability due to its potential for remote code execution.
How do I fix CVE-2021-34956?
To fix CVE-2021-34956, users should update their Foxit PDF Editor to the latest version provided by the vendor.
Who is affected by CVE-2021-34956?
CVE-2021-34956 specifically affects users of Foxit PDF Editor for Mac.
What type of vulnerability is CVE-2021-34956?
CVE-2021-34956 is a use-after-free vulnerability that can lead to arbitrary code execution.
Is user interaction required to exploit CVE-2021-34956?
Yes, user interaction is required to exploit CVE-2021-34956 as it involves the manipulation of PDF files.

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