What is CVE-2025-44904?

CVE-2025-44904 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. hdf5 v1.14.6 was discovered to contain a heap buffer overflow via the H5VM_memcpyvv function.

Which CVE IDs does CVE-2025-44904 cover?

CVE-2025-44904 covers the following CVE IDs: CVE-2025-44904. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-44904?

CVE-2025-44904 has a CVSS v3 base score of 8.8, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2025-44904?

CVE-2025-44904 affects 6 products, including: azl3 hdf5 1.14.6-1 on Azure Linux 3.0; azl3 hdf5 1.14.6-2 on Azure Linux 3.0; cbl2 hdf5 1.14.6-1 on CBL Mariner 2.0; cbl2 hdf5 1.14.6-2; cbl2 hdf5 1.14.6-2 on CBL Mariner 2.0; and others — see the full list on the advisory page.

CVE-2025-44904HighCVSS 8.8

hdf5 v1.14.6 was discovered to contain a heap buffer overflow via the H5VM_memcpyvv function.

Vendor

Microsoft Security Response Center (MSRC)

Published

May 31, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2025-44904 →

🎯 Affected products6

azl3 hdf5 1.14.6-1 on Azure Linux 3.0
azl3 hdf5 1.14.6-2 on Azure Linux 3.0
cbl2 hdf5 1.14.6-1 on CBL Mariner 2.0
cbl2 hdf5 1.14.6-2
cbl2 hdf5 1.14.6-2 on CBL Mariner 2.0
cbl2 hdf5 1.14.6-2 on CBL-Mariner 2.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 1.14.6-3 KBRelease Notes (Security Update)

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-44904
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade