Get detailed insights into CVE-2021-21062, a critical vulnerability in Acrobat Reader DC. Learn about impacts, affected versions, and mitigation steps.
This article provides detailed information about CVE-2021-21062, a vulnerability affecting Acrobat Reader DC versions.
Understanding CVE-2021-21062
CVE-2021-21062 is a Memory corruption vulnerability in Acrobat Reader DC versions that could lead to arbitrary code execution.
What is CVE-2021-21062?
Acrobat Reader DC versions 2020.013.20074 and earlier are affected by a memory corruption vulnerability. An attacker could exploit this to execute arbitrary code as the current user.
The Impact of CVE-2021-21062
The vulnerability has a CVSS base score of 7.8, with high severity due to confidentiality, integrity, and availability impacts.
Technical Details of CVE-2021-21062
The vulnerability involves a buffer overflow when parsing a specially crafted PDF file.
Vulnerability Description
A memory corruption vulnerability allows an unauthenticated attacker to achieve arbitrary code execution.
Affected Systems and Versions
Acrobat Reader DC versions 2020.013.20074, 2020.001.30018, and 2017.011.30188 are affected.
Exploitation Mechanism
User interaction is required for the exploit, where a victim must open a malicious PDF file.
Mitigation and Prevention
To mitigate the risk posed by CVE-2021-21062, follow these steps:
Immediate Steps to Take
Users are advised to update Acrobat Reader to the latest version to patch the vulnerability.
Long-Term Security Practices
Maintain updated security software and exercise caution when opening files from unknown sources.
Patching and Updates
Regularly check for security updates from Adobe and apply them promptly.