CVE-2021-46818: Adobe Media Encoder M4A file memory corruption vulnerability could lead to remote code execution

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-06-13 · updated 2026-06-17
Weakness: CWE-787

Description

Adobe Media Encoder version 15.4 (and earlier) are affected by a memory corruption 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 M4A file.

Affected products

Adobe Media Encoder: before 15.4.1 — fixed in 15.4.1

How to fix

Upgrade to a fixed version: Adobe Media Encoder 15.4.1. Check the vendor advisory for mitigations.

References

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