CVE-2021-34953: Foxit PDF Reader Annotation Use of Uninitialized Variable Remote Code Execution Vulnerability
Foxit PDF Reader Annotation Use of Uninitialized Variable 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 Annotation objects. The issue results from the lack of proper initialization of a pointer prior to accessing it. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14658.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-34953?
CVE-2021-34953 is classified as a critical vulnerability allowing remote code execution.
How do I fix CVE-2021-34953?
To mitigate CVE-2021-34953, update Foxit PDF Reader to the latest version provided by the vendor.
What type of vulnerability is CVE-2021-34953?
CVE-2021-34953 is a remote code execution vulnerability caused by the use of an uninitialized variable.
What should users do if they have CVE-2021-34953?
Users of Foxit PDF Reader should ensure they have applied the latest security updates to protect against CVE-2021-34953.
Is user interaction required for CVE-2021-34953 exploitation?
Yes, exploitation of CVE-2021-34953 requires user interaction.