CVE-2025-2923: Hdfgroup HDF5

Low severity, CVSS 3.3. EPSS: 0.3% chance of exploitation in the next 30 days.

A vulnerability, which was classified as problematic, has been found in HDF5 up to 1.14.6. Affected by this issue is the function H5F_addr_encode_len of the file src/H5Fint.c. The manipulation of the argument pp 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: before 1.14.6 (fixed in 1.14.6)

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