CVE-2021-34837: Foxit PDF Reader Annotation Use-After-Free Remote Code Execution Vulnerability
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-14018.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Foxit PDF Reader | ||
| 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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Reference Links
Frequently Asked Questions
What is CVE-2021-34837?
CVE-2021-34837 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.0.0.49893.
How can this vulnerability be exploited?
This vulnerability can be exploited by user interaction, such as visiting a malicious page or opening a malicious file.
What is the severity of CVE-2021-34837?
The severity of CVE-2021-34837 is high, with a severity value of 7.8.
What software versions are affected by CVE-2021-34837?
Foxit PDF Reader 11.0.0.49893 and Foxitsoftware PDF Editor 10.1.4.37651 are affected by CVE-2021-34837.
How can I fix CVE-2021-34837?
To fix CVE-2021-34837, it is recommended to update to the latest version of Foxit PDF Reader or Foxitsoftware PDF Editor.
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