Description
A double free vulnerability was discovered in the HDF5 library. Processing a crafted HDF5 file containing an oversized chunk size field via h5repack may cause the application to abort due to a double free.
Published: 2026-07-27
Score: 4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 29 Jul 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-763
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.0, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H'}

threat_severity

Moderate


Mon, 27 Jul 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Hdfgroup
Hdfgroup hdf5
Vendors & Products Hdfgroup
Hdfgroup hdf5
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 27 Jul 2026 15:30:00 +0000

Type Values Removed Values Added
Description A double free vulnerability was discovered in the HDF5 library. Processing a crafted HDF5 file containing an oversized chunk size field via h5repack may cause the application to abort due to a double free.
Title Double Free in H5D__chunk_copy() in HDF5 via a Crafted Chunk-Index Size Field
Weaknesses CWE-415
References
Metrics cvssV4_0

{'score': 4, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U'}


cve-icon MITRE

Status: PUBLISHED

Assigner: HDFG

Published:

Updated: 2026-07-27T17:27:00.732Z

Reserved: 2026-07-27T15:07:06.180Z

Link: CVE-2026-17573

cve-icon Vulnrichment

Updated: 2026-07-27T17:26:56.213Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-07-27T15:11:54Z

Links: CVE-2026-17573 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-07-28T15:15:04Z

Weaknesses