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CVE-2021-36014: Improper Input Validation (CWE-20) in Adobe Media Encoder

Medium
Published: Fri Aug 20 2021 (08/20/2021, 18:10:26 UTC)
Source: CVE
Vendor/Project: Adobe
Product: Media Encoder

Description

Adobe Media Encoder version 15.2 (and earlier) is affected by an uninitialized pointer vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to read arbitrary file system information in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

AI-Powered Analysis

AILast updated: 06/23/2025, 22:59:09 UTC

Technical Analysis

CVE-2021-36014 is a vulnerability identified in Adobe Media Encoder version 15.2 and earlier, stemming from improper input validation (CWE-20). Specifically, the vulnerability arises due to an uninitialized pointer when the software parses specially crafted files. This flaw can be exploited by an unauthenticated attacker who convinces a user to open a maliciously crafted media file. Upon successful exploitation, the attacker can read arbitrary file system information with the same privileges as the current user running Adobe Media Encoder. The vulnerability does not allow direct code execution or privilege escalation but can lead to unauthorized disclosure of sensitive information stored on the victim's system. Exploitation requires user interaction, as the victim must open the malicious file for the vulnerability to be triggered. There are no known exploits in the wild, and no official patches or updates have been linked in the provided information. The vulnerability is categorized under improper input validation, indicating that the software fails to properly verify or sanitize input data before processing, leading to memory-related issues such as uninitialized pointers. This can cause the application to leak data from memory or the file system during parsing operations.

Potential Impact

For European organizations, the primary impact of CVE-2021-36014 is the potential unauthorized disclosure of sensitive or confidential information stored on systems running vulnerable versions of Adobe Media Encoder. This could include proprietary media files, project data, or other sensitive documents accessible to the user context. While the vulnerability does not directly allow remote code execution or system compromise, the leakage of information can aid attackers in further targeted attacks, social engineering, or intellectual property theft. Organizations in media production, broadcasting, advertising, and creative industries that rely heavily on Adobe Media Encoder are particularly at risk. The requirement for user interaction limits large-scale automated exploitation but does not eliminate risk, especially in environments where users frequently receive and open media files from external sources. The vulnerability could also be leveraged in spear-phishing campaigns targeting European companies. Given the lack of known exploits in the wild, the immediate threat level is moderate, but the potential for future exploitation remains if patches are not applied.

Mitigation Recommendations

1. Update Adobe Media Encoder to the latest available version beyond 15.2, as vendors typically release patches addressing such vulnerabilities. If no patch is currently available, monitor Adobe security advisories closely for updates. 2. Implement strict email and file filtering policies to block or quarantine suspicious media files, especially those received from untrusted or unknown sources. 3. Educate users, particularly those in creative and media departments, about the risks of opening unsolicited or unexpected media files and encourage verification of file sources. 4. Employ application whitelisting and sandboxing techniques to limit the ability of Adobe Media Encoder to access sensitive directories or files, reducing the scope of data exposure if exploited. 5. Use endpoint detection and response (EDR) tools to monitor for unusual file access patterns or application behaviors that may indicate exploitation attempts. 6. Restrict user privileges so that Adobe Media Encoder runs with the least privilege necessary, minimizing the amount of sensitive data accessible to the application. 7. Maintain regular backups and ensure that sensitive data is encrypted at rest to mitigate the impact of any data leakage.

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Technical Details

Data Version
5.1
Assigner Short Name
adobe
Date Reserved
2021-06-30T00:00:00.000Z
Cisa Enriched
true

Threat ID: 682d9841c4522896dcbf1aba

Added to database: 5/21/2025, 9:09:21 AM

Last enriched: 6/23/2025, 10:59:09 PM

Last updated: 7/26/2025, 3:33:52 PM

Views: 10

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