CVE-2026-29043

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/HDFGroup/hdf5/security/advisories/GHSA-qm2m-5g5w-2277	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:hdfgroup:hdf5:*:*:*:*:*:*:*:*

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) HDF5 es un software para la gestión de datos. En 1.14.1-2 y versiones anteriores, un atacante que puede controlar un archivo h5 analizado por HDF5 puede desencadenar una condición de desbordamiento de búfer de montículo basado en escritura en el método H5T__ref_mem_setnull. Esto puede llevar a una condición de denegación de servicio y, potencialmente, a problemas adicionales como la ejecución remota de código, dependiendo de la explotabilidad práctica del desbordamiento de montículo contra sistemas operativos modernos.

Information

Published : 2026-04-10 16:16

Updated : 2026-10-26 21:10

NVD link : CVE-2026-29043

Mitre link : CVE-2026-29043

CVE.ORG link : CVE-2026-29043

JSON object : View

Products Affected

hdfgroup

hdf5

CWE

CWE-122

Heap-based Buffer Overflow

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