CVE-2021-28557 : Vulnerability Insights and Analysis

Adobe Acrobat Reader versions 2021.001.20150, 2020.001.30020, and 2017.011.30194 are affected by an Out-of-bounds Read vulnerability that could lead to information exposure. This article provides insights into the impact, technical details, and mitigation strategies.

Understanding CVE-2021-28557

This section delves into the vulnerability, its impact, affected systems, and exploitation mechanisms.

What is CVE-2021-28557?

Acrobat Reader DC versions 2021.001.20150, 2020.001.30020, and 2017.011.30194 are susceptible to an Out-of-bounds Read vulnerability. An attacker could exploit this to expose sensitive system data.

The Impact of CVE-2021-28557

The vulnerability could allow an unauthenticated attacker to leak sensitive information within the user's context by persuading them to open a malicious file.

Technical Details of CVE-2021-28557

This section provides more insight into the vulnerability.

Vulnerability Description

CVE-2021-28557 is categorized as an Out-of-bounds Read (CWE-125) vulnerability.

Affected Systems and Versions

Adobe Acrobat Reader versions 2021.001.20150, 2020.001.30020, and 2017.011.30194 are affected.

Exploitation Mechanism

Exploiting this vulnerability requires user interaction, where the victim needs to open a malicious file to trigger the attack.

Mitigation and Prevention

Learn how to protect your systems from CVE-2021-28557.

Immediate Steps to Take

Users are advised to update Acrobat Reader to the latest version and avoid opening files from unknown or untrusted sources.

Long-Term Security Practices

Implementing security best practices such as regular software updates, security training, and file validation can enhance overall security.

Patching and Updates

Adobe has released security updates to address this vulnerability. Ensure your software is up to date to mitigate the risk of exploitation.