What is the severity of CVE-2021-34955?

CVE-2021-34955 has a critical severity rating as it allows arbitrary code execution by remote attackers.

How do I fix CVE-2021-34955?

To fix CVE-2021-34955, update your Foxit PDF Editor to the latest version provided by the vendor.

What versions of Foxit PDF Editor are affected by CVE-2021-34955?

CVE-2021-34955 affects certain versions of Foxit PDF Editor, specifically older versions prior to the security update.

Is user interaction required to exploit CVE-2021-34955?

Yes, user interaction is required to exploit CVE-2021-34955, as the target must open a malicious PDF file.

What type of vulnerability is CVE-2021-34955 categorized as?

CVE-2021-34955 is categorized as a use-after-free vulnerability that leads to remote code execution.

Vulnerability/
CVE-2021-34955

high

7.8

CWE

416

7/5/2024

4/8/2024

29/1/2025

CVE-2021-34955: Foxit PDF Editor Stamp Annotation Use-After-Free Remote Code Execution Vulnerability

First published: Tue May 07 2024(Updated: )

Foxit PDF Editor Stamp 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-14356.

Credit: zdi-disclosures@trendmicro.com

Affected Software	Affected Version	How to fix
Foxit PhantomPDF for Windows

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-34955?
CVE-2021-34955 has a critical severity rating as it allows arbitrary code execution by remote attackers.
How do I fix CVE-2021-34955?
To fix CVE-2021-34955, update your Foxit PDF Editor to the latest version provided by the vendor.
What versions of Foxit PDF Editor are affected by CVE-2021-34955?
CVE-2021-34955 affects certain versions of Foxit PDF Editor, specifically older versions prior to the security update.
Is user interaction required to exploit CVE-2021-34955?
Yes, user interaction is required to exploit CVE-2021-34955, as the target must open a malicious PDF file.
What type of vulnerability is CVE-2021-34955 categorized as?
CVE-2021-34955 is categorized as a use-after-free vulnerability that leads to remote code execution.

agent/weakness
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collector/mitre-cve
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agent/last-modified-date
agent/trending
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agent/tags
collector/zdi-advisory
source/ZDI
alias/ZDI-21-1186
alias/ZDI-CAN-14356
alias/CVE-2021-34955
agent/software-canonical-lookup
agent/software-canonical-lookup-request
vendor/foxit
canonical/foxit phantompdf for windows

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Frequently Asked Questions

What is the severity of CVE-2021-34955?
CVE-2021-34955 has a critical severity rating as it allows arbitrary code execution by remote attackers.
How do I fix CVE-2021-34955?
To fix CVE-2021-34955, update your Foxit PDF Editor to the latest version provided by the vendor.
What versions of Foxit PDF Editor are affected by CVE-2021-34955?
CVE-2021-34955 affects certain versions of Foxit PDF Editor, specifically older versions prior to the security update.
Is user interaction required to exploit CVE-2021-34955?
Yes, user interaction is required to exploit CVE-2021-34955, as the target must open a malicious PDF file.
What type of vulnerability is CVE-2021-34955 categorized as?
CVE-2021-34955 is categorized as a use-after-free vulnerability that leads to remote code execution.