How can the CVE-2021-34852 vulnerability be exploited?

The CVE-2021-34852 vulnerability can be exploited by remote attackers if the target visits a malicious page or opens a malicious file.

What is the severity of CVE-2021-34852?

CVE-2021-34852 has a severity rating of 7.8 (High).

Which software versions are affected by CVE-2021-34852?

CVE-2021-34852 affects Foxit PDF Reader 11.0.0.49893 and Foxitsoftware Pdf Editor 10.1.4.37651.

How can I fix CVE-2021-34852?

To fix CVE-2021-34852, update your Foxit PDF Reader to the latest version released by Foxit Software.

Vulnerability/
CVE-2021-34852

high

7.8

CWE

416

4/8/2021

4/8/2024

CVE-2021-34852: Foxit PDF Reader Annotation Use-After-Free Remote Code Execution Vulnerability

Q: What is CVE-2021-34852?

CVE-2021-34852 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.0.0.49893.

First published: Wed Aug 04 2021(Updated: )

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.0.0.49893. 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-13929.

Credit: zdi-disclosures@trendmicro.com

Affected Software	Affected Version	How to fix
Foxit PDF Reader	<=11.0.0.49893
Foxitsoftware Pdf Editor	<=10.1.4.37651
Foxitsoftware Pdf Editor	=11.0.0.49893
Microsoft Windows

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Frequently Asked Questions

What is CVE-2021-34852?
CVE-2021-34852 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.0.0.49893.
How can the CVE-2021-34852 vulnerability be exploited?
The CVE-2021-34852 vulnerability can be exploited by remote attackers if the target visits a malicious page or opens a malicious file.
What is the severity of CVE-2021-34852?
CVE-2021-34852 has a severity rating of 7.8 (High).
Which software versions are affected by CVE-2021-34852?
CVE-2021-34852 affects Foxit PDF Reader 11.0.0.49893 and Foxitsoftware Pdf Editor 10.1.4.37651.
How can I fix CVE-2021-34852?
To fix CVE-2021-34852, update your Foxit PDF Reader to the latest version released by Foxit Software.

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