HDF5 H5T__ref_mem_setnull Heap Buffer Overflow_CVE-2026-29043

5.5 / 10

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Description

HDF5 is software for managing data. In 1.14.1-2 and earlier, an attacker who can control an h5 file parsed by HDF5 can trigger a write-based heap buffer overflow condition in the H5T__ref_mem_setnull method. This can lead to a denial-of-service condition, and potentially further issues such as remote code execution depending on the practical exploitability of the heap overflow against modern operating systems.

Basic Information

ID CVE-2026-29043

Source GitHub_M

Published Apr 10, 2026 at 15:35

Affected Product

Vendor HDFGroup

Product hdf5

Version <= 1.14.1-2

Affected Versions HDFGroup hdf5 <= 1.14.1-2

CWE Classification

CWE-122

References

github.com /HDFGroup/hdf5/security/advisories/GHSA-qm2m-5g5w-2277

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    "published": "2026-04-10T15:35:51.682Z",
    "modified": "2026-04-10T15:35:51.682Z",
    "type": "cve",
    "title": "HDF5 H5T__ref_mem_setnull Heap Buffer Overflow",
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