CVE-2025-6269: Hdfgroup HDF5

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

A vulnerability classified as critical was found in HDF5 up to 1.14.6. Affected by this vulnerability is the function H5C__reconstruct_cache_entry of the file H5Cimage.c. The manipulation leads to heap-based buffer overflow. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.

Affected products

• Hdfgroup HDF5: up to and including 1.14.6

Published 2025-06-19. Last modified 2026-06-17.