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Fencer Vulns
high 8.6

CVE-2016-4331 json

When decoding data out of a dataset encoded with the H5Z_NBIT decoding, the HDF5 1.8.16 library will fail to ensure that the precision is w…

published 2016-11-18 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-5331

cvss
8.6
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

When decoding data out of a dataset encoded with the H5Z_NBIT decoding, the HDF5 1.8.16 library will fail to ensure that the precision is within the bounds of the size leading to arbitrary code execution.

Patch / fix

  • hdf5 Debian 14, Debian 13, Debian 12 1.10.0-patch1+docs-1

debian advisories DEBIAN-CVE-2016-4331

  • hdf5 Ubuntu 14.04 LTS 1.8.11-5ubuntu7.1
  • hdf5 Ubuntu 16.04 LTS 1.8.16+docs-4ubuntu1.1

ubuntu advisories UBUNTU-CVE-2016-4331

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • hdf5 Package Hub 12 1.8.17-5.1

opensuse advisories openSUSE-SU-2018:1051-1openSUSE-SU-2018:1056-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-4331 updated cvss 8.6

hdf5: H5Z_NBIT heap buffer overflow

  • Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) hdf5 Red Hat OpenShift Enterprise 2 hdf5 Red Hat OpenStack Platform 8 (Liberty) hdf5 Red Hat OpenStack Platform 9 (Mitaka) hdf5 Red Hat OpenStack Platform 10 (Newton) hdf5
    affected: no fix planned “Will not fix”
  • Red Hat OpenStack Platform 11 (Ocata) hdf5
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.76% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • talosintelligence.com http://www.talosintelligence.com/reports/TALOS-2016-0177/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 8.6 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
NVD 2.0 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.