# CVE-2026-22554: MediaArea MediaInfoLib heap overflow in Channel Splitting

Source: https://junglewise.ai/threats/cve-2026-22554-mediaarea-mediainfolib-heap-overflow-in-channel-splitting  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-20. Updated: 2026-05-20  
License: CC BY 4.0 with a link back

CVE-2026-22554 · Severity: high · CVSS 7.8 · Published 2026-05-20

MediaArea MediaInfoLib is a library used to extract technical metadata from video and audio files. A security vulnerability in its audio channel splitting feature allows an attacker to potentially take control of a system if a user opens a specially crafted .riff audio file. This could lead to unauthorized access to data or the execution of malicious software on the affected machine.

Technologies: [MediaArea MediaInfoLib](https://junglewise.ai/threats/technologies/mediainfolib). Vendors: [MediaArea](https://junglewise.ai/threats/vendors/mediaarea).

## Quick answers

**Is CVE-2026-22554 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-22554 being exploited in the wild.

**How severe is CVE-2026-22554?** High severity, with a CVSS score of 7.8, published 20 May 2026.

**Which products and versions are affected?** MediaArea MediaInfoLib 26.01.

**Is there a fix for CVE-2026-22554?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-22554 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-22554?** Check whether you run MediaArea MediaInfoLib at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A heap-based buffer overflow (CWE-122) exists in MediaInfoLib version 26.01 within the `File_ChannelSplitting::Read_Buffer_Continue` function. The vulnerability is triggered when parsing a RIFF audio file with a specific configuration (e.g., 20-bit depth). In this specific code path, the `Buffer_Offset` variable is not properly incremented during byte copies, while the destination buffer index (`Buffer_Size`) continues to increase without bounds checking. This allows an attacker to overflow the heap-allocated buffer, potentially overwriting adjacent memory structures and pointers. Successful exploitation requires a user to open a specially crafted .riff file and can result in arbitrary code execution.

## Affected products

- MediaArea MediaInfoLib 26.01

## Timeline

- 2026-05-20: disclosed: Vulnerability reported by Cisco Talos
- 2026-05-20: advisory: NVD and Talos advisories published

## References

- [https://talosintelligence.com/vulnerability_reports/TALOS-2026-2374](https://talosintelligence.com/vulnerability_reports/TALOS-2026-2374)

## Related threats

- [MediaArea MediaInfoLib heap buffer overflow in ID3v2 parsing](https://junglewise.ai/threats/cve-2026-25713-mediaarea-mediainfolib-heap-buffer-overflow-in-id3v2-parsing)
- [MediaArea MediaInfoLib heap overflow in LXF parsing](https://junglewise.ai/threats/cve-2026-25104-mediaarea-mediainfolib-heap-overflow-in-lxf-parsing)
- [MediaArea MediaInfoLib heap buffer overflow in LXF parsing](https://junglewise.ai/threats/cve-2026-28764-mediaarea-mediainfolib-heap-buffer-overflow-in-lxf-parsing)