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CVE-2024-33874

HDF5 Library - H5Omtime.c

The HDF Group CVSS 9.8 Updated April 6, 2026

Executive Risk Summary

"A heap buffer overflow vulnerability exists in the HDF5 Library through version 1.14.3, specifically in the H5O__mtime_new_encode function within H5Omtime.c. This vulnerability could potentially allow an attacker to execute arbitrary code or cause a denial-of-service condition."

Anticipated Attack Path

  1. 1. Initial Exploitation: Attacker sends crafted input to exploit the heap buffer overflow
  2. 2. Privilege Escalation: Potential for arbitrary code execution
  3. 3. Lateral Movement: Possible further exploitation of the system or network

Am I Vulnerable?

  • Verify HDF5 Library version is updated to 1.14.4 or later
  • Monitor system logs for signs of exploitation or anomalies
  • Implement additional security measures such as input validation and memory protection

Operational Audit Arsenal

Target Type library
Target Asset libhdf5
Standard Path /usr/lib or C:\Program Files\HDF Group\HDF5

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 update primarily affects the HDF5 Library

Internal Work Notes

Update HDF5 Library to version 1.14.4 or later to mitigate heap buffer overflow vulnerability (CVE-2024-33874)

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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.