CVE-2021-42720 : What You Need to Know

Adobe Bridge version 11.1.1 (and earlier) is affected by an out-of-bounds read vulnerability that could lead to arbitrary code execution. This CVE was published on October 26, 2021.

Understanding CVE-2021-42720

Adobe Bridge is susceptible to exploitation through crafted files that could allow an attacker to execute malicious code in the user's context.

What is CVE-2021-42720?

Adobe Bridge version 11.1.1 and prior are impacted by an out-of-bounds read vulnerability.
The vulnerability arises during file parsing, potentially enabling an attacker to execute code beyond allocated memory.
Successful exploitation requires user interaction to open a malicious file.

The Impact of CVE-2021-42720

CVSS Score: 7.8 (High)
Attack Vector: Local
Attack Complexity: Low
Confidentiality, Integrity, and Availability Impact: High
User Interaction: Required

Technical Details of CVE-2021-42720

This section delves into the specifics of the vulnerability.

Vulnerability Description

The vulnerability allows for an out-of-bounds read in Adobe Bridge.
It stems from parsing manipulated files, potentially enabling code execution.

Affected Systems and Versions

Affected Product: Adobe Bridge
Vendor: Adobe
Versions: <= 11.1.1 and unspecified custom versions.

Exploitation Mechanism

The vulnerability requires opening a specially crafted file to trigger code execution.

Mitigation and Prevention

Learn how to protect your systems against CVE-2021-42720.

Immediate Steps to Take

Update Adobe Bridge to a non-affected version.
Be cautious when opening files from untrusted sources.

Long-Term Security Practices

Regularly update software to patch known vulnerabilities.
Educate users on safe file handling practices.

Patching and Updates

Adobe has released a security advisory addressing this vulnerability.