What is CVE-2016-4330?

CVE-2016-4330 is a high-severity vulnerability in Hdfgroup Hdf5, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.6/10. Published 2016-11-18.

How severe is CVE-2016-4330?

High severity. CVSS v3 base score is 8.6 out of 10.

Buffer overflow in Hdfgroup Hdf5

CVE-2016-4330

In the HDF5 1.8.16 library's failure to check if the number of dimensions for an array read from the file is within the bounds of the space allocated for it, a heap-based buffer overflow will occur, potentially leading to arbitrary code execution.

Vulnerability class: Buffer Overflow

Published 2016-11-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (54.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Hdfgroup Hdf5 — versions 1.8.16

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

www.talosintelligence.com/reports/TALOS-2016-0176/ (Technical Description, Exploit, Third Party Advisory)
www.securityfocus.com/bid/94414 (vdb-entry)
security.gentoo.org/glsa/201701-13 (vendor-advisory)
www.debian.org/security/2016/dsa-3727 (vendor-advisory)

Frequently asked questions

What is CVE-2016-4330?: CVE-2016-4330 is a high-severity vulnerability in Hdfgroup Hdf5, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.6/10. Published 2016-11-18.
How severe is CVE-2016-4330?: High severity. CVSS v3 base score is 8.6 out of 10.