CVE-2021-43756: Adobe Media Encoder

High severity, CVSS 7.8. EPSS: 2% chance of exploitation in the next 30 days.

Adobe Media Encoder versions 22.0, 15.4.2 (and earlier) are affected by an Out-of-bounds Write vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve 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: before 15.4.2 (fixed in 15.4.2); from 22.0, before 22.1.1 (fixed in 22.1.1)

Published 2022-06-15. Last modified 2026-06-17.