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