CVE-2021-34948: Foxit PDF Reader Square Annotation Use-After-Free Remote Code Execution Vulnerability
Foxit PDF Reader Square Annotation Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader. 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 Square 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-14272.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-34948?
CVE-2021-34948 has a critical severity rating due to its potential for remote code execution.
How does CVE-2021-34948 affect Foxit PDF Reader?
CVE-2021-34948 allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader.
How do I fix CVE-2021-34948?
To fix CVE-2021-34948, ensure you update Foxit PDF Reader to the latest version provided by the vendor.
Is user interaction required to exploit CVE-2021-34948?
Yes, user interaction is required for the exploitation of CVE-2021-34948, as the target must open a specially crafted PDF file.
What should I do if I am using an affected version of Foxit PDF Reader related to CVE-2021-34948?
If you are using an affected version of Foxit PDF Reader, it is recommended to update to the latest secure version immediately.