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CVE-2018-17437

22
FAUCET Score

CVE-2018-17437 is a memory leak vulnerability in the H5O_dtype_decode_helper() function within the HDF5 library (versions through 1.10.3). This flaw allows an unauthenticated attacker to trigger a denial of service by crafting and providing a malicious HDF5 file, leading to excessive memory consumption. Rated as Medium severity (CVSS 6.5), it requires user interaction (UI:R) to open the malicious file. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.10.3CPE matchmatch criteria
cpe:2.3:a:hdfgroup:hdf5:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.49%
Probability of exploitation in next 30 days
EPSS Percentile
71.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0149 is in the 84th percentile among its peer group of 26,236 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (6)

redhatvendor investigatingvia redhat_api
Product: Red Hat OpenStack Platform 10 (Newton)Fixed in: hdf5
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenStack Platform 13 (Queens)Fixed in: hdf5
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenStack Platform 14 (Rocky)Fixed in: hdf5
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenStack Platform 8 (Liberty)Fixed in: hdf5
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenStack Platform 9 (Mitaka)Fixed in: hdf5
redhatno patchvia redhat_api
Product: Red Hat OpenStack Platform 12 (Pike)Fixed in: hdf5

Vendor Advisories (1)

redhatCVE-2018-17437Low

hdf5: memory leak in H5O_dtype_decode_helper() in H5Odtype.c

Sep 24, 2018

References

github.com / SegfaultMasters/covering360/tree/master/HDF5/vuln5
ExploitThird Party Advisory
lists.debian.org / debian-lts-announce/2023/08/msg00009.html