What is CVE-2020-10812?

CVE-2020-10812 is a medium-severity vulnerability in Hdfgroup Hdf5, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2020-03-22.

How severe is CVE-2020-10812?

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

NULL pointer dereference in Hdfgroup Hdf5

CVE-2020-10812

An issue was discovered in HDF5 through 1.12.0. A NULL pointer dereference exists in the function H5F_get_nrefs() located in H5Fquery.c. It allows an attacker to cause Denial of Service.

Published 2020-03-22 · 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: 0.015 (73.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Hdfgroup Hdf5

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

bitbucket.hdfgroup.org/projects/HDFFV/repos/hdf5/browse/release_docs/RELEASE.txt (Third Party Advisory, Release Notes)
research.loginsoft.com/bugs/null-pointer-dereference-in-h5fquery-c-hdf5-1-13-0/ (Exploit, Third Party Advisory)
github.com/Loginsoft-Research/hdf5-reports/tree/master/Vuln_4 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-10812?: CVE-2020-10812 is a medium-severity vulnerability in Hdfgroup Hdf5, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2020-03-22.
How severe is CVE-2020-10812?: Medium severity. CVSS v3 base score is 5.5 out of 10.