CVE-2021-34835: 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-14015.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| 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 the vulnerability ID for the Foxit PDF Reader Annotation Use-After-Free Remote Code Execution vulnerability?
The vulnerability ID for this vulnerability is CVE-2021-34835.
What is the severity of CVE-2021-34835?
The severity of CVE-2021-34835 is high with a severity value of 7.8.
Which software versions are affected by the Foxit PDF Reader Annotation Use-After-Free Remote Code Execution vulnerability?
Foxit PDF Reader versions up to and including 11.0.0.49893 are affected.
Is user interaction required to exploit CVE-2021-34835?
Yes, user interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
Are there any references available for CVE-2021-34835?
Yes, you can find more information about CVE-2021-34835 in the security bulletins on the Foxit website and the advisory from Zero Day Initiative.
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