CVE-2021-42721: Adobe Media Encoder

High severity, CVSS 7.8. EPSS: 3.7% chance of exploitation in the next 30 days.

Acrobat Bridge versions 11.1.1 and earlier are affected by a use-after-free vulnerability in the processing of Format event actions that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Affected products

• Adobe Media Encoder: up to and including 15.4

Published 2021-11-16. Last modified 2026-06-17.