What is CVE-2026-22554?

CVE-2026-22554 is a high-severity vulnerability in Mediaarea Mediainfolib, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2026-05-20.

How severe is CVE-2026-22554?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Mediaarea Mediainfolib

CVE-2026-22554

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.

Vulnerability class: Buffer Overflow

Published 2026-05-20 · last modified 2026-09-23.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (15.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.000

Affected products

Mediaarea Mediainfolib — versions 26.01

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

talosintelligence.com/vulnerability_reports/TALOS-2026-2374 (Third Party Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory)

Frequently asked questions

What is CVE-2026-22554?: CVE-2026-22554 is a high-severity vulnerability in Mediaarea Mediainfolib, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2026-05-20.
How severe is CVE-2026-22554?: High severity. CVSS v3 base score is 7.8 out of 10.