CVE-2021-28552 : Vulnerability Insights and Analysis

Adobe Acrobat Reader DC versions 2021.001.20155 (and earlier), 2020.001.30025 (and earlier), and 2017.011.30196 (and earlier) are affected by an Use After Free vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the current user's context. Learn more about the impact, technical details, and mitigation steps for CVE-2021-28552.

Understanding CVE-2021-28552

This section provides an overview of the Adobe Acrobat Reader DC XFA Template Use-After-Free Remote Code Execution Vulnerability.

What is CVE-2021-28552?

CVE-2021-28552 refers to an Use After Free vulnerability in Adobe Acrobat Reader DC versions that allows an unauthenticated attacker to execute arbitrary code.

The Impact of CVE-2021-28552

The vulnerability poses a high risk with a CVSS base score of 7.8, allowing for arbitrary code execution in the context of the current user without requiring privileges.

Technical Details of CVE-2021-28552

Explore the specifics of the vulnerability, affected systems, and the exploitation mechanism.

Vulnerability Description

The Use After Free vulnerability in Adobe Acrobat Reader DC versions enables attackers to achieve code execution by exploiting a user interaction scenario.

Affected Systems and Versions

Acrobat Reader DC versions 2021.001.20155, 2020.001.30025, and 2017.011.30196 are confirmed to be impacted by this vulnerability.

Exploitation Mechanism

Exploiting the vulnerability requires user interaction, where a victim needs to open a malicious file for the attack to be successful.

Mitigation and Prevention

Discover the immediate steps to secure your systems and establish long-term security practices to safeguard against such vulnerabilities.

Immediate Steps to Take

Users are advised to apply security patches provided by Adobe promptly to mitigate the risk associated with CVE-2021-28552.

Long-Term Security Practices

Incorporating robust security practices for file handling, user permissions, and software updates can help prevent similar vulnerabilities in the future.

Patching and Updates

Regularly update Adobe Acrobat Reader DC to the latest version and monitor security advisories for any further updates addressing CVE-2021-28552.