CVE-2021-40701 in Premiere Elements
Summary
by MITRE • 09/28/2021
Adobe Premiere Elements version 2021.2235820 (and earlier) is affected by a memory corruption vulnerability due to insecure handling of a malicious m4a file, potentially resulting in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability.
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Analysis
by VulDB Data Team • 05/03/2025
Adobe Premiere Elements version 2021.2235820 and earlier versions contain a critical memory corruption vulnerability that stems from insecure handling of malicious m4a audio files. This vulnerability falls under the CWE-121 category of Stack-based Buffer Overflow, where the application fails to properly validate and sanitize input file structures before processing them. The flaw occurs during the parsing of m4a file metadata and audio data streams, where insufficient bounds checking allows an attacker to craft maliciously formatted files that trigger buffer overflows in the application's memory management routines.
The vulnerability requires user interaction to be exploited, meaning that an attacker must convince a target to open a specifically crafted m4a file within Premiere Elements. This interaction model aligns with the ATT&CK technique T1203, where adversaries use social engineering to execute malicious payloads through legitimate software applications. When the vulnerable application processes the malicious file, the corrupted memory state can be manipulated to overwrite critical program execution pointers or return addresses, potentially enabling arbitrary code execution with the privileges of the currently logged-in user. This represents a significant escalation from a simple denial-of-service condition to a full remote code execution capability.
The operational impact of this vulnerability extends beyond simple exploitation as it affects creative professionals who frequently work with multimedia files and may encounter malicious content through various channels including email attachments, file sharing platforms, or compromised websites. The attack surface is particularly concerning given that Premiere Elements is widely used in professional and personal environments where users may not be security-aware. The vulnerability's exploitation can result in complete system compromise, data exfiltration, or deployment of additional malware payloads. Organizations using Adobe Premiere Elements should consider this vulnerability as a critical threat requiring immediate attention, as it can be leveraged in targeted attacks against creative professionals, media organizations, or anyone who regularly processes multimedia content.
Mitigation strategies should include immediate patching of Adobe Premiere Elements to version 2021.223582 or later, which contains the necessary memory validation fixes. Additionally, organizations should implement strict file validation policies and consider deploying application whitelisting solutions to prevent execution of untrusted multimedia files. Network-based security controls such as email filtering and web proxies should be configured to block suspicious m4a files and other multimedia formats from entering the organization. System administrators should also monitor for unusual process activity and implement endpoint detection and response solutions that can identify potential exploitation attempts. The vulnerability demonstrates the importance of secure coding practices in multimedia processing applications and highlights the need for regular security assessments of creative software tools that handle untrusted input data.