CVE-2021-43758: Adobe Media Encoder

Medium severity, CVSS 5.5. EPSS: 0.3% 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 read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious MP4 file.

Affected products

• Adobe Media Encoder: before 15.4.3 (fixed in 15.4.3); version 22.0 only

Published 2023-07-12. Last modified 2026-06-17.