CVE-2025-2924: Hdfgroup HDF5

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

A vulnerability, which was classified as problematic, was found in HDF5 up to 1.14.6. This affects the function H5HL__fl_deserialize of the file src/H5HLcache.c. The manipulation of the argument free_block leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.

Affected products

• Hdfgroup HDF5: up to and including 1.14.6

Published 2025-03-28. Last modified 2026-06-17.