CVE-2021-21822 : Vulnerability Insights and Analysis
Learn about CVE-2021-21822, a critical use-after-free vulnerability in Foxit PDF Reader 10.1.3.37598 enabling arbitrary code execution. Find mitigation steps and best practices for enhanced security.
A detailed overview of CVE-2021-21822, a high-severity use-after-free vulnerability in Foxit Software's PDF Reader version 10.1.3.37598, allowing arbitrary code execution by exploiting the JavaScript engine.
Understanding CVE-2021-21822
This section provides insights into the nature of the vulnerability and its potential impact.
What is CVE-2021-21822?
CVE-2021-21822 is a use-after-free vulnerability in Foxit PDF Reader 10.1.3.37598's JavaScript engine. Attackers can exploit this flaw by manipulating a specially crafted PDF document to execute arbitrary code.
The Impact of CVE-2021-21822
The impact of this vulnerability is significant, with a CVSS base score of 8.8 (High). Exploitation can lead to severe consequences, such as unauthorized access, data integrity compromise, and service disruption.
Technical Details of CVE-2021-21822
Explore the technical aspects of the vulnerability, including affected systems, exploitation methods, and more.
Vulnerability Description
The use-after-free vulnerability in Foxit PDF Reader 10.1.3.37598 allows attackers to trigger the reuse of free memory via a manipulated PDF file, resulting in arbitrary code execution.
Affected Systems and Versions
This vulnerability affects Foxit PDF Reader version 10.1.3.37598.
Exploitation Mechanism
To exploit CVE-2021-21822, attackers need to entice users to open a malicious PDF document or visit a compromised website, leveraging the JavaScript engine vulnerability.
Mitigation and Prevention
Discover the necessary steps to mitigate the risk associated with CVE-2021-21822 and prevent potential exploitation.
Immediate Steps to Take
Users should disable browser plugin extensions or use alternative PDF readers temporarily until a security patch is available from Foxit Software.
Long-Term Security Practices
Implementing a robust cybersecurity strategy, including regular software updates, security awareness training, and endpoint protection, can enhance overall security posture.
Patching and Updates
Stay informed about security advisories from Foxit Software and promptly apply recommended patches to address CVE-2021-21822 and other vulnerabilities.