CVE-2021-36018 is an out-of-bounds read vulnerability (CWE-125) affecting Adobe After Effects version 18.2.1 and earlier. This vulnerability arises when the software parses a specially crafted file, leading to the application reading memory outside the intended buffer boundaries. Such an out-of-bounds read can result in the disclosure of sensitive memory contents within the context of the current user. The vulnerability does not require authentication, meaning an attacker does not need valid credentials to exploit it. However, exploitation necessitates user interaction, specifically that the victim opens a maliciously crafted After Effects project or file. The vulnerability primarily impacts confidentiality by potentially exposing sensitive information stored in memory, such as cryptographic keys, passwords, or other private data. There is no indication that this vulnerability allows for code execution or privilege escalation. No known exploits have been reported in the wild, and Adobe has not provided a patch link in the provided information, suggesting that remediation may require updating to a newer version once available or applying vendor advisories. The vulnerability is categorized as medium severity, reflecting its limited impact scope and exploitation requirements.

For European organizations, the primary impact of CVE-2021-36018 lies in the potential leakage of sensitive information from systems running vulnerable versions of Adobe After Effects. Organizations involved in media production, advertising, film, and digital content creation are most at risk, as they are the primary users of After Effects. Disclosure of sensitive memory data could lead to further targeted attacks if attackers obtain credentials or proprietary information. Although the vulnerability does not allow direct code execution, the information leakage could be leveraged in multi-stage attacks. The requirement for user interaction reduces the likelihood of widespread automated exploitation but does not eliminate risk, especially in environments where users frequently exchange project files. Confidentiality breaches could impact intellectual property and client data, leading to reputational damage and regulatory consequences under GDPR if personal data is exposed. The vulnerability’s impact on system integrity and availability is minimal, but the confidentiality risk remains significant for organizations handling sensitive multimedia content or proprietary workflows.

To mitigate CVE-2021-36018, European organizations should implement the following specific measures: 1) Ensure all Adobe After Effects installations are updated to the latest available version beyond 18.2.1, as vendors typically release patches for such vulnerabilities; if no patch is available, consider restricting the use of After Effects to trusted files only. 2) Implement strict file handling policies that limit the opening of project files from untrusted or unknown sources, including email attachments and external storage devices. 3) Employ endpoint security solutions capable of detecting and blocking malicious files or anomalous behavior related to After Effects. 4) Conduct user awareness training focused on the risks of opening unsolicited or suspicious multimedia project files. 5) Utilize application whitelisting and sandboxing techniques to isolate After Effects processes, reducing the potential impact of memory disclosure. 6) Monitor network and host logs for unusual activity that could indicate exploitation attempts. 7) Coordinate with Adobe support channels for timely updates and advisories. These measures go beyond generic advice by emphasizing file trust policies, user training specific to multimedia workflows, and process isolation tailored to After Effects usage.