What is CVE-2025-56226?

CVE-2025-56226 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. Libsndfile \u003c=1.2.2 contains a memory leak vulnerability in the mpeg_l3_encoder_init() function within the mpeg_l3_encode.c file.

Which CVE IDs does CVE-2025-56226 cover?

CVE-2025-56226 covers the following CVE IDs: CVE-2025-56226. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-56226?

CVE-2025-56226 has a CVSS v3 base score of 5.3, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2025-56226?

CVE-2025-56226 affects 3 products, including: azl3 libsndfile 1.2.2-3 on Azure Linux 3.0; azl3 libsndfile 1.2.2-4 on Azure Linux 3.0; cbl2 libsndfile 1.0.31-4 on CBL Mariner 2.0.

CVE-2025-56226MediumCVSS 5.3

Libsndfile <=1.2.2 contains a memory leak vulnerability in the mpeg_l3_encoder_init() function within the mpeg_l3_encode.c file.

Vendor

Microsoft Security Response Center (MSRC)

Published

June 2, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2025-56226 →

🎯 Affected products3

azl3 libsndfile 1.2.2-3 on Azure Linux 3.0
azl3 libsndfile 1.2.2-4 on Azure Linux 3.0
cbl2 libsndfile 1.0.31-4 on CBL Mariner 2.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 1.2.2-4

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-56226
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade