CVE-2026-106547

A heap-based buffer overflow in H5VM_array_fill() in src/H5VM.c in HDF5 before 2.2.0 lets a remote attacker cause an application crash and possibly execute arbitrary code with a crafted HDF5 file. When a dataset's unallocated chunks are read, H5D__fill_init() fills the fill-value buffer from datatype and dataspace metadata in the file. If that metadata is inconsistent with the buffer's allocated size, the write goes past the end of the buffer. The attacker can control the content written through the fill value stored in the file.

CVSS

No CVSS.

References

Link	Resource
https://github.com/HDFGroup/hdf5/pull/6529

Configurations

No configuration.

History

06 Oct 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-06 21:17

Updated : 2026-10-07 16:17

NVD link : CVE-2026-106547

Mitre link : CVE-2026-106547

CVE.ORG link : CVE-2026-106547

JSON object : View

Products Affected

No product.

CWE

CWE-122

Heap-based Buffer Overflow

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