# CVE-2026-25104: MediaArea MediaInfoLib heap overflow in LXF parsing

Source: https://junglewise.ai/threats/cve-2026-25104-mediaarea-mediainfolib-heap-overflow-in-lxf-parsing  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-26. Updated: 2026-05-26  
License: CC BY 4.0 with a link back

CVE-2026-25104 · Severity: high · CVSS 7.8 · Published 2026-05-26

MediaInfoLib, a library used to extract technical data and metadata from video and audio files, is vulnerable to a memory corruption flaw when processing LEITCH (.lxf) video files. By tricking a user into opening a specially crafted malicious file, an attacker could potentially execute unauthorized code on the system. This could lead to a full system compromise or the theft of sensitive information.

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

## Quick answers

**Is CVE-2026-25104 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-25104 being exploited in the wild.

**How severe is CVE-2026-25104?** High severity, with a CVSS score of 7.8, published 26 May 2026.

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

**Is there a fix for CVE-2026-25104?** 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-2026-25104 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-25104?** 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 exists in MediaInfoLib 26.01 within the LXF (LEITCH video format) parsing functionality, specifically in the `File_ChannelGrouping::Read_Buffer_Continue()` function. The vulnerability is rooted in an integer underflow (CWE-191) occurring during the audio channel merging process. When processing a 20-bit depth stream, the `Minimum` variable (derived from user-controlled buffer sizes) can be decremented past zero, resulting in a massive unsigned integer value. This causes a `while` loop to continue indefinitely, overwriting heap memory beyond the allocated 32,768-byte buffer. An attacker can leverage this to overwrite adjacent memory structures, including the `BitDepth` variable and subsequent pointers, to achieve arbitrary code execution. Exploitation requires a user to open a malicious .lxf file.

## Affected products

- MediaArea MediaInfoLib 26.01

## Timeline

- 2026-05-25: advisory: Initial disclosure by Cisco Talos (TALOS-2026-2367)
- 2026-05-26: disclosed: NVD publication date

## References

- [https://talosintelligence.com/vulnerability_reports/TALOS-2026-2367](https://talosintelligence.com/vulnerability_reports/TALOS-2026-2367)
- [https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2367](https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2367)

## 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 buffer overflow in LXF parsing](https://junglewise.ai/threats/cve-2026-28764-mediaarea-mediainfolib-heap-buffer-overflow-in-lxf-parsing)
- [MediaArea MediaInfoLib heap overflow in Channel Splitting](https://junglewise.ai/threats/cve-2026-22554-mediaarea-mediainfolib-heap-overflow-in-channel-splitting)