CVE-2021-31450: Foxit Reader XFA Form Use-After-Free Remote Code Execution Vulnerability
First published: Fri May 07 2021(Updated: )
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 10.1.1.37576. 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 XFA forms. 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-13084.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Foxitsoftware Foxit Reader | <=10.1.3.37598 | |
| Foxitsoftware Phantompdf | <=9.7.5.29616 | |
| Foxitsoftware Phantompdf | >=10.0.0.0<=10.1.3.37598 | |
| Microsoft Windows |
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Reference Links
Frequently Asked Questions
What is CVE-2021-31450?
CVE-2021-31450 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 10.1.1.37576.
How can this vulnerability be exploited?
User interaction is required to exploit this vulnerability by visiting a malicious page or opening a malicious file.
What software is affected by CVE-2021-31450?
Foxit Reader versions 10.1.1.37576 up to and including 10.1.3.37598 are affected, as well as Foxit PhantomPDF versions up to and including 9.7.5.29616 and versions between 10.0.0.0 and 10.1.3.37598.
What is the severity of CVE-2021-31450?
The severity of CVE-2021-31450 is high, with a CVSS score of 7.8.
How do I fix CVE-2021-31450?
Apply the latest security patch provided by Foxit Software to update to a fixed version of Foxit Reader or Foxit PhantomPDF.
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