What is the severity of CVE-2021-34957?

CVE-2021-34957 is classified as a critical vulnerability that allows remote code execution on affected Foxit PDF Editor installations.

How do I fix CVE-2021-34957?

To fix CVE-2021-34957, users should update to the latest version of Foxit PDF Editor provided by the vendor.

What causes CVE-2021-34957?

CVE-2021-34957 is caused by a use-after-free vulnerability in the highlight annotation feature of Foxit PDF Editor.

What are the potential impacts of CVE-2021-34957?

The potential impacts of CVE-2021-34957 include arbitrary code execution and total compromise of the affected systems.

Is user interaction required to exploit CVE-2021-34957?

Yes, user interaction is required to exploit CVE-2021-34957, as the attacker needs the victim to open a malicious PDF file.

Vulnerability/
CVE-2021-34957

high

7.8

CWE

416

7/5/2024

4/8/2024

22/2/2025

CVE-2021-34957: Foxit PDF Editor Highlight Annotation Use-After-Free Remote Code Execution Vulnerability

First published: Tue May 07 2024(Updated: )

Foxit PDF Editor Highlight 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-14358.

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-2021-34957?
CVE-2021-34957 is classified as a critical vulnerability that allows remote code execution on affected Foxit PDF Editor installations.
How do I fix CVE-2021-34957?
To fix CVE-2021-34957, users should update to the latest version of Foxit PDF Editor provided by the vendor.
What causes CVE-2021-34957?
CVE-2021-34957 is caused by a use-after-free vulnerability in the highlight annotation feature of Foxit PDF Editor.
What are the potential impacts of CVE-2021-34957?
The potential impacts of CVE-2021-34957 include arbitrary code execution and total compromise of the affected systems.
Is user interaction required to exploit CVE-2021-34957?
Yes, user interaction is required to exploit CVE-2021-34957, as the attacker needs the victim to open a malicious PDF file.

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