CVE-2021-34834: 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-14014.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Foxit Reader | ||
| Foxit Reader | <=11.0.0.49893 | |
| Foxit PDF Editor | <=10.1.4.37651 | |
| Foxit PDF Editor | =11.0.0.49893 | |
| Microsoft Windows |
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Reference Links
Frequently Asked Questions
What is CVE-2021-34834?
CVE-2021-34834 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader and Foxitsoftware Pdf Editor.
How severe is CVE-2021-34834?
CVE-2021-34834 has a severity rating of 7.8, which is considered high.
What is the affected software for CVE-2021-34834?
The affected software for CVE-2021-34834 includes Foxit PDF Reader 11.0.0.49893 and Foxitsoftware Pdf Editor 10.1.4.37651 and 11.0.0.49893.
How can CVE-2021-34834 be exploited?
CVE-2021-34834 can be exploited by remote attackers who trick the target into visiting a malicious page or opening a malicious file.
Where can I find more information about CVE-2021-34834?
You can find more information about CVE-2021-34834 on the Foxit support security bulletins page and the Zero Day Initiative advisories page.
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