CVE-2021-28555 : What You Need to Know

Adobe Acrobat Reader DC 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 disclosure. An attacker could exploit this to access sensitive data.

Understanding CVE-2021-28555

This CVE involves Adobe Acrobat Reader DC versions vulnerable to an Out-of-bounds Read flaw, potentially allowing unauthorized users to access sensitive information.

What is CVE-2021-28555?

CVE-2021-28555 involves Adobe Acrobat Reader DC versions up to 2021.001.20150, 2020.001.30020, and 2017.011.30194 that are prone to an Out-of-bounds Read vulnerability, enabling attackers to gain unauthorized access to sensitive data.

The Impact of CVE-2021-28555

The vulnerability poses a medium-severity risk with high confidentiality impact, where an unauthenticated attacker could exploit it to access sensitive information within the user's context.

Technical Details of CVE-2021-28555

This section presents detailed technical information about the vulnerability.

Vulnerability Description

The Out-of-bounds Read vulnerability in Adobe Acrobat Reader could be leveraged by attackers to disclose sensitive information by tricking users into opening malicious files.

Affected Systems and Versions

This vulnerability affects Adobe Acrobat Reader DC versions including 2021.001.20150, 2020.001.30020, and 2017.011.30194.

Exploitation Mechanism

Exploitation of this vulnerability requires user interaction, as victims must open a malicious file to trigger the attack.

Mitigation and Prevention

Protective measures to mitigate the risks associated with CVE-2021-28555.

Immediate Steps to Take

Users should update their Acrobat Reader to the latest patched version provided by Adobe to mitigate the risk of exploitation.

Long-Term Security Practices

It is recommended to practice safe browsing habits, avoid opening unsolicited files, and regularly update software to guard against potential vulnerabilities.

Patching and Updates

Regularly check for security updates and patches released by Adobe to address vulnerabilities like CVE-2021-28555.