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CVE-2018-17436

23
FAUCET Score

CVE-2018-17436 is a denial-of-service vulnerability affecting the HDF5 library up to version 1.10.3, specifically within the ReadCode() function in decompress.c. An unauthenticated attacker can trigger an invalid write access by tricking a user into processing a specially crafted HDF5 file, potentially converted from a GIF. This vulnerability carries a CVSSv3 score of 6.5 (Medium), indicating a network-based attack with low complexity, requiring user interaction, and leading to high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

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
1.31%
Probability of exploitation in next 30 days
EPSS Percentile
67.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0131 is in the 80th 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-2018-17436Low

hdf5: invalid write access in ReadCode() in decompress.c

Sep 24, 2018

References

github.com / SegfaultMasters/covering360/tree/master/HDF5/vuln8
ExploitThird Party Advisory