CVE-2021-34849: 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-14531.
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 of the Foxit PDF Reader vulnerability?
The vulnerability ID is CVE-2021-34849.
What is the severity level of CVE-2021-34849?
The severity level of CVE-2021-34849 is high with a score of 7.8.
Which software versions are affected by CVE-2021-34849?
Foxit PDF Reader versions up to and including 11.0.0.49893 are affected.
How can CVE-2021-34849 be exploited?
CVE-2021-34849 can be exploited by remote attackers who trick the user into visiting a malicious page or opening a malicious file.
Where can I find more information about CVE-2021-34849?
More information about CVE-2021-34849 can be found on the Foxit support website and the Zero Day Initiative advisory.
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