# CVE-2021-43021: Adobe Premiere Rush EXR File Memory Corruption Remote Code Execution

> Attackers can execute arbitrary code by tricking users into opening a malicious EXR file in Adobe Premiere Rush.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **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 available:** No
- **Published:** 20 Dec 2021
- **Updated:** 23 Apr 2025
- **Also known as:** GHSA-735r-p43f-q5j4

## What is CVE-2021-43021?

CVE-2021-43021 is a high-severity memory corruption 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 version 1.5.16 (and earlier) is affected by a memory corruption vulnerability due to insecure handling of a malicious EXR file, potentially resulting in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability.

Weakness: CWE-787 (Out-of-bounds Write), CWE-788 (Access of Memory Location After End of Buffer)

## Which versions are affected by CVE-2021-43021?

It affects 1 product.


Products: Adobe Premiere Rush.

## How do I fix CVE-2021-43021?

No fix has been published for CVE-2021-43021 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-43021 being exploited?

There is no known exploitation of CVE-2021-43021 in the wild and no public exploit code.

## Other vulnerabilities in Adobe Premiere Rush

- [CVE-2023-22234](https://insights.sbomify.com/CVE-2023-22234/): Adobe Premiere Rush PSD file Stack-based Buffer Overflow Arbitrary code execution (high 7.8)
- [CVE-2023-22244](https://insights.sbomify.com/CVE-2023-22244/): Adobe Premiere Rush PSD files Use After Free Arbitrary code execution (high 7.8)
- [CVE-2021-40783](https://insights.sbomify.com/CVE-2021-40783/): Adobe Premiere Rush WAV File Memory Corruption Remote Code Execution (high 7.8)
- [CVE-2021-40784](https://insights.sbomify.com/CVE-2021-40784/): Adobe Premiere Rush WAV File Memory Corruption Remote Code Execution (high 7.8)
- [CVE-2021-43022](https://insights.sbomify.com/CVE-2021-43022/): Adobe Premiere Rush PNG File Memory Corruption Remote Code Execution (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-43021 and fix it if it is affected.

What it is: CVE-2021-43021 is a high-severity memory corruption 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.
Exploitation: There is no known exploitation of CVE-2021-43021 in the wild and no public exploit code.

Affected product: Adobe Premiere Rush. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2021-43021/ (Markdown: https://insights.sbomify.com/CVE-2021-43021/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-43021
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-43021
- OSV: https://osv.dev/vulnerability/CVE-2021-43021

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-43021/
Summaries are generated and may contain mistakes; the official description above is the record.