CVE-2021-34847: 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-14270.
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 the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2021-34847.
What is the severity of CVE-2021-34847?
The severity of CVE-2021-34847 is high (7.8).
Which software versions are affected by CVE-2021-34847?
CVE-2021-34847 affects Foxit PDF Reader 11.0.0.49893 and Foxitsoftware Pdf Editor 11.0.0.49893.
Is user interaction required to exploit CVE-2021-34847?
Yes, user interaction is required to exploit CVE-2021-34847. The target must visit a malicious page or open a malicious file.
How can I fix CVE-2021-34847?
To fix CVE-2021-34847, update your installation of Foxit PDF Reader to the latest version.
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- vendor/microsoft
- canonical/microsoft windows