What is CVE-2019-8398?

CVE-2019-8398 is a medium-severity vulnerability in Hdfgroup Hdf5, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2019-02-17.

How severe is CVE-2019-8398?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Out-of-bounds Read in Hdfgroup Hdf5

CVE-2019-8398

An issue was discovered in the HDF HDF5 1.10.4 library. There is an out of bounds read in the function H5T_get_size in H5T.c.

Vulnerability class: Buffer Overflow

Published 2019-02-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.012 (67.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: +0.000

Affected products

Hdfgroup Hdf5 — versions 1.10.4

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

github.com/magicSwordsMan/PAAFS/tree/master/vul6 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2019-8398?: CVE-2019-8398 is a medium-severity vulnerability in Hdfgroup Hdf5, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2019-02-17.
How severe is CVE-2019-8398?: Medium severity. CVSS v3 base score is 6.5 out of 10.