What is CVE-2021-45829?

CVE-2021-45829 is a medium-severity vulnerability in Hdfgroup Hdf5, classified under Improper Resource Shutdown or Release. CVSS score: 5.5/10. Published 2022-01-03.

How severe is CVE-2021-45829?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Hdfgroup Hdf5

CVE-2021-45829

HDF5 1.13.1-1 is affected by: segmentation fault, which causes a Denial of Service.

Published 2022-01-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (50.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Hdfgroup Hdf5 — versions 1.13.1-1

Weakness classification (CWE)

CWE-404 — Improper Resource Shutdown or Release

References

github.com/HDFGroup/hdf5/issues/1317 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2021-45829?: CVE-2021-45829 is a medium-severity vulnerability in Hdfgroup Hdf5, classified under Improper Resource Shutdown or Release. CVSS score: 5.5/10. Published 2022-01-03.
How severe is CVE-2021-45829?: Medium severity. CVSS v3 base score is 5.5 out of 10.