CVE-2021-43746 Adobe Premiere Rush MP4 File Parsing Uninitialized Variable Information Disclosure Vulnerability

Medium 5.5 Published 20 Dec 2021 Updated 23 Apr 2025

Remote attackers can disclose sensitive information by tricking users into opening malicious MP4 files in Adobe Premiere Rush.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2021-43746?

CVE-2021-43746 is a medium-severity vulnerability in Adobe Premiere Rush, published on 20 Dec 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Adobe Premiere Rush versions 1.5.16 (and earlier) allows access to an uninitialized pointer vulnerability that allows remote attackers to disclose sensitive information on affected installations. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of MP4 files. The issue results from the lack of proper initialization of memory prior to accessing it.

Weakness: CWE-824

Which versions are affected by CVE-2021-43746?

It affects 1 product.

Products include Adobe Premiere Rush.

How do I fix CVE-2021-43746?

No fix has been published for CVE-2021-43746 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-43746 being exploited?

There is no known exploitation of CVE-2021-43746 in the wild and no public exploit code.

Sources

Also known as GHSA-m8fx-qg8p-vw5p.