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