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CVE-2016-4332

28
FAUCET Score

CVE-2016-4332 is a heap buffer overflow vulnerability in the HDF5 1.8.16 library, caused by improper handling of message types and flags, leading to out-of-bounds writes. This flaw affects products utilizing the hdfgroup hdf5 library. It carries a high CVSS score of 8.6, indicating a critical risk due to potential code execution with high impact on confidentiality, integrity, and availability, requiring user interaction. While no active exploits, Metasploit modules, or ExploitDB entries are publicly available, the vulnerability has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.8.16CPE matchmatch criteria
cpe:2.3:a:hdfgroup:hdf5:1.8.16:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.6HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.81%
Probability of exploitation in next 30 days
EPSS Percentile
53.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0081 is in the 50th percentile among its peer group of 11,616 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (5)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)Fixed in: hdf5
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Enterprise 2Fixed in: hdf5
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 10 (Newton)Fixed in: hdf5
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 8 (Liberty)Fixed in: hdf5
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 9 (Mitaka)Fixed in: hdf5

Vendor Advisories (1)

redhatCVE-2016-4332Important

hdf5: Shareable message type out-of-bounds write

Nov 15, 2016

References

security.gentoo.org / glsa/201701-13
debian.org / security/2016/dsa-3727
securityfocus.com / bid/94417
talosintelligence.com / reports/TALOS-2016-0178
ExploitTechnical DescriptionThird Party Advisory