What is CVE-2024-32615?

CVE-2024-32615 is a critical-severity vulnerability in Hdfgroup Hdf5, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2024-05-14.

How severe is CVE-2024-32615?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Hdfgroup Hdf5

CVE-2024-32615

HDF5 Library through 1.14.3 contains a heap-based buffer overflow in H5Z__nbit_decompress_one_byte in H5Znbit.c, caused by the earlier use of an initialized pointer.

Vulnerability class: Buffer Overflow

Published 2024-05-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (64.5th percentile), scored 2026-10-05.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Hdfgroup Hdf5

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

www.hdfgroup.org/2024/05/new-hdf5-cve-issues-fixed-in-1-14-4/ (Issue Tracking, Vendor Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (Third Party Advisory)

Frequently asked questions

What is CVE-2024-32615?: CVE-2024-32615 is a critical-severity vulnerability in Hdfgroup Hdf5, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2024-05-14.
How severe is CVE-2024-32615?: Critical severity. CVSS v3 base score is 9.8 out of 10.