CVE-2026-22554 Memory corruption in MediaInfoLib

High 7.8 Published 20 May 2026 Updated 23 Sep 2026

A heap-based buffer overflow in MediaInfoLib allows arbitrary code execution via a crafted .riff file.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-22554?

CVE-2026-22554 is a high-severity memory corruption vulnerability in MediaArea MediaInfoLib, published on 20 May 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A heap-based buffer overflow vulnerability exists in the Channel Splitting functionality of MediaInfoLib (version(s): 26.01). A specially crafted .riff file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.

Weakness: CWE-122

Which versions are affected by CVE-2026-22554?

It affects 1 product.

Products include Mediaarea Mediainfolib.

How do I fix CVE-2026-22554?

No fix has been published for CVE-2026-22554 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-22554 being exploited?

There is no known exploitation of CVE-2026-22554 in the wild and no public exploit code.

Sources

Also known as GHSA-4mj8-945c-q57m, UBUNTU-CVE-2026-22554.