CVE-2021-31455: 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-13100.
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 | ||
| Foxit Reader |
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Reference Links
Frequently Asked Questions
What is the CVE ID of this vulnerability?
The CVE ID of this vulnerability is CVE-2021-31455.
What software versions are affected by this vulnerability?
Foxit Reader versions up to and including 10.1.3.37598 and Foxit Phantompdf versions up to and including 9.7.5.29616 and between 10.0.0.0 and 10.1.3.37598 are affected.
What is the severity of CVE-2021-31455?
The severity of CVE-2021-31455 is high with a CVSS score of 7.8.
What is the attack vector for this vulnerability?
The attack vector for CVE-2021-31455 requires user interaction, such as visiting a malicious page or opening a malicious file.
How can I mitigate this vulnerability?
To mitigate this vulnerability, ensure that you update Foxit Reader and Foxit Phantompdf to the latest versions available.
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