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CVE-2025-44904

HDF5 - H5VM

The HDF Group CVSS 8.8 Updated April 6, 2026

Executive Risk Summary

"A heap buffer overflow vulnerability was discovered in HDF5 v1.14.6, specifically in the H5VM_memcpyvv function, which could allow an attacker to execute arbitrary code. This vulnerability poses a significant risk to systems that utilize HDF5 for data storage and management."

Anticipated Attack Path

  1. 1. Initial Exploitation: Attacker sends crafted input to the H5VM_memcpyvv function
  2. 2. Privilege Escalation: Exploitation of the heap buffer overflow vulnerability to gain elevated privileges
  3. 3. Lateral Movement: Potential movement to other systems or components using the compromised HDF5 library

Am I Vulnerable?

  • Verify the version of HDF5 installed on systems
  • Check for any suspicious activity related to the H5VM_memcpyvv function
  • Apply the latest security patches for HDF5

Operational Audit Arsenal

Target Type library
Target Asset libhdf5.so
Standard Path /usr/lib/x86_64-linux-gnu/

Manual Verification Required

This is a non-Windows asset (The HDF Group). Use the target asset details and official path provided above to verify your current version against the official vendor advisories listed below.

Patch Impact Forecast

Reboot Required Unlikely

Minimal, as the patch only updates the HDF5 library

Internal Work Notes

HDF5 library vulnerability (CVE-2025-44904) - potential for arbitrary code execution, recommend immediate patching

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Intelligence Sources

Related The HDF Group Threats

Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.