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CVE-2018-13871

30
FAUCET Score

CVE-2018-13871 is a critical heap-based buffer overflow vulnerability found in the HDF5 library, specifically version 1.8.20, affecting products from the hdfgroup. With a CVSS score of 9.8, it allows for unauthenticated remote attackers to achieve high confidentiality, integrity, and availability impacts with low attack complexity. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
1.8.20CPE matchmatch criteria
cpe:2.3:a:hdfgroup:hdf5:1.8.20:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.85%
Probability of exploitation in next 30 days
EPSS Percentile
76.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0185 is in the 65th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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 (8)

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 10 (Newton)Fixed in: hdf5
redhatno patchvia redhat_api
Product: Red Hat OpenStack Platform 12 (Pike)Fixed in: hdf5
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 9 (Mitaka)Fixed in: hdf5
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 OpenStack Platform 8 (Liberty)Fixed in: hdf5
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: hdf5

Vendor Advisories (1)

redhatCVE-2018-13871Low

hdf5: heap-based buffer overflow in the function H5FL_blk_malloc in H5FL.c

Jul 10, 2018

References

github.com / TeamSeri0us/pocs/tree/master/hdf5
ExploitThird Party Advisory