CVE-2024-32616Public exploit

Process crash via datatype metadata over-read

Published May 9, 2024 · Updated Feb 13, 2025

Heap buffer over-read in HDF5 1.14.3 and earlier allows local users to crash a process by supplying malformed HDF5 datatype metadata. H5O__dtype_encode_helper in H5Odtype.c reads beyond a heap allocation while encoding datatype metadata; public sources do not identify the specific field or missing bounds check. The file must be processed locally, and the confirmed consequence is a process crash; broader confidentiality or integrity effects have not been demonstrated.

CVSS severity7.4
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer over-read in HDF5 1.14.3 and earlier allows local users to crash a process by supplying malformed HDF5 datatype metadata. H5O__dtype_encode_helper in H5Odtype.c reads beyond a heap allocation while encoding datatype metadata; public sources do not identify the specific field or missing bounds check. The file must be processed locally, and the confirmed consequence is a process crash; broader confidentiality or integrity effects have not been demonstrated.

The record

CVE
CVE-2024-32616
Published
May 9, 2024
Updated
Feb 13, 2025
Vendor
The HDF Group
Product
HDF5
Classifications
CWE-122, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.14.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

The HDF Group · HDF5version=0 <=1.14.3

Published CVSS scores

5.7SUSECVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
7.4CISA-ADPCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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