CVE-2021-46818 : Security Advisory and Response

Adobe Media Encoder version 15.4 (and earlier) are affected by a memory corruption vulnerability allowing remote code execution. An attacker could exploit by tricking users into opening malicious files.

Understanding CVE-2021-46818

Adobe Media Encoder M4A file memory corruption vulnerability allows hackers to execute code remotely, posing a significant threat to user confidentiality and system integrity.

What is CVE-2021-46818?

Adobe Media Encoder 15.4 (and previous) has a memory corruption flaw
An unauthenticated attacker can exploit it for arbitrary code execution
Attack requires users to open a malicious M4A file

The Impact of CVE-2021-46818

CVSS score: 7.8 (High Severity)
Attack complexity: Low, Attack vector: Local
High impact on availability, confidentiality, and integrity

Technical Details of CVE-2021-46818

Adobe Media Encoder vulnerability details and affected systems.

Vulnerability Description

Type: Out-of-bounds Write (CWE-787)
Enables attackers to execute arbitrary code

Affected Systems and Versions

Product: Media Encoder by Adobe
Versions: <= 15.4

Exploitation Mechanism

Requires user interaction to open a malicious M4A file

Mitigation and Prevention

Protecting systems from CVE-2021-46818.

Immediate Steps to Take

Update Adobe Media Encoder to a non-vulnerable version
Avoid opening M4A files from untrusted sources

Long-Term Security Practices

Conduct regular security awareness training
Implement robust email and file scanning mechanisms

Patching and Updates

Apply security patches promptly to address this vulnerability