What is the severity of ZDI-21-553?

The severity of ZDI-21-553 is rated as high due to its potential to disclose sensitive information.

How do I fix ZDI-21-553?

To fix ZDI-21-553, update Foxit Reader to the latest version to mitigate the vulnerability.

What type of attack does ZDI-21-553 involve?

ZDI-21-553 involves a remote information disclosure attack that requires user interaction.

What versions of Foxit Reader are affected by ZDI-21-553?

ZDI-21-553 affects vulnerable installations of Foxit Reader prior to the security update.

Is user interaction necessary to exploit ZDI-21-553?

Yes, user interaction is required for ZDI-21-553, as the target must visit a malicious page or open a malicious file.

Vulnerability/
ZDI-21-553

low

3.3

22/2/2025

ZDI-21-553: Foxit Reader U3D File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Foxit Reader. 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 U3D objects embedded in PDF files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated object. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

Affected Software	Affected Version	How to fix
Foxit PDF Reader

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Frequently Asked Questions

What is the severity of ZDI-21-553?
The severity of ZDI-21-553 is rated as high due to its potential to disclose sensitive information.
How do I fix ZDI-21-553?
To fix ZDI-21-553, update Foxit Reader to the latest version to mitigate the vulnerability.
What type of attack does ZDI-21-553 involve?
ZDI-21-553 involves a remote information disclosure attack that requires user interaction.
What versions of Foxit Reader are affected by ZDI-21-553?
ZDI-21-553 affects vulnerable installations of Foxit Reader prior to the security update.
Is user interaction necessary to exploit ZDI-21-553?
Yes, user interaction is required for ZDI-21-553, as the target must visit a malicious page or open a malicious file.

agent/references
agent/type
agent/severity
agent/title
agent/description
agent/source
agent/tags
agent/softwarecombine
agent/event
collector/zdi-advisory
source/ZDI
alias/ZDI-21-553
alias/ZDI-CAN-13574
alias/CVE-2021-31464
agent/software-canonical-lookup
agent/software-canonical-lookup-request
vendor/foxit
canonical/foxit pdf reader

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