What is the severity of CVE-2021-34964?

CVE-2021-34964 is classified as a critical severity vulnerability due to its potential to allow remote code execution.

How do I fix CVE-2021-34964?

To fix CVE-2021-34964, users should update their Foxit PDF Editor to the latest version provided by the vendor.

What type of vulnerability is CVE-2021-34964?

CVE-2021-34964 is a use-after-free vulnerability that may allow attackers to execute arbitrary code.

Does exploiting CVE-2021-34964 require user interaction?

Yes, exploiting CVE-2021-34964 requires user interaction to be successful.

Which versions of Foxit PDF Editor are affected by CVE-2021-34964?

CVE-2021-34964 affects certain installations of Foxit PDF Editor, particularly Foxit PhantomPDF for Windows.

Vulnerability/
CVE-2021-34964

high

7.8

CWE

416

7/5/2024

4/8/2024

22/2/2025

CVE-2021-34964: Foxit PDF Editor Polygon Annotation Use-After-Free Remote Code Execution Vulnerability

First published: Tue May 07 2024(Updated: )

Foxit PDF Editor Polygon 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-14366.

Credit: zdi-disclosures@trendmicro.com

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

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Frequently Asked Questions

What is the severity of CVE-2021-34964?
CVE-2021-34964 is classified as a critical severity vulnerability due to its potential to allow remote code execution.
How do I fix CVE-2021-34964?
To fix CVE-2021-34964, users should update their Foxit PDF Editor to the latest version provided by the vendor.
What type of vulnerability is CVE-2021-34964?
CVE-2021-34964 is a use-after-free vulnerability that may allow attackers to execute arbitrary code.
Does exploiting CVE-2021-34964 require user interaction?
Yes, exploiting CVE-2021-34964 requires user interaction to be successful.
Which versions of Foxit PDF Editor are affected by CVE-2021-34964?
CVE-2021-34964 affects certain installations of Foxit PDF Editor, particularly Foxit PhantomPDF for Windows.

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