What is CVE-2017-17505?

CVE-2017-17505 is a medium-severity vulnerability in Hdfgroup Hdf5, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2017-12-11.

How severe is CVE-2017-17505?

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

Is CVE-2017-17505 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

NULL pointer dereference in Hdfgroup Hdf5

CVE-2017-17505

In HDF5 1.10.1, there is a NULL pointer dereference in the function H5O_pline_decode in the H5Opline.c file in libhdf5.a. For example, h5dump would crash when someone opens a crafted hdf5 file.

Published 2017-12-11 · 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 (67.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.4% 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 1.10.1

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

Public proof-of-concept exploits

References

github.com/xiaoqx/pocs/tree/master/hdf5/readme.md (Third Party Advisory)

Frequently asked questions

What is CVE-2017-17505?: CVE-2017-17505 is a medium-severity vulnerability in Hdfgroup Hdf5, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2017-12-11.
How severe is CVE-2017-17505?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2017-17505 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.