CVE-2021-45056 Explained : Impact and Mitigation

Adobe InCopy version 16.4 (and earlier) is affected by an out-of-bounds write vulnerability that could result in arbitrary code execution. User interaction is required for exploitation.

Understanding CVE-2021-45056

What is CVE-2021-45056?

Adobe InCopy versions 16.4 and below are susceptible to an out-of-bounds write vulnerability, allowing malicious actors to execute arbitrary code within the user's context.

The Impact of CVE-2021-45056

The vulnerability has a CVSS base score of 7.8, indicating a high severity issue with significant impacts on confidentiality, integrity, and availability.

Technical Details of CVE-2021-45056

Vulnerability Description

The vulnerability in Adobe InCopy allows for out-of-bounds write, potentially leading to remote code execution on the affected system.

Affected Systems and Versions

Product: InCopy
Vendor: Adobe
Versions affected: 16.4 and earlier, unspecified custom versions

Exploitation Mechanism

Requires user interaction where a victim opens a malicious file triggering the vulnerability.

Mitigation and Prevention

Immediate Steps to Take

Users should update Adobe InCopy to the latest version to patch the vulnerability.
Exercise caution when opening files from unknown or untrusted sources.
Implement security awareness training to educate users on recognizing phishing attempts.

Long-Term Security Practices

Regularly update software and systems to prevent known vulnerabilities exploitation.
Utilize security tools like antivirus software to detect and mitigate potential threats.

Patching and Updates

Adobe has released a security update addressing this vulnerability. Users should apply the patch promptly to protect their systems.