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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-26200

HDF5 Affected by H5T__conv_struct_opt Heap Buffer Overflow

Description

HDF5 is software for managing data. Prior to version 1.14.4-2, an attacker who can control an `h5` file parsed by HDF5 can trigger a write-based heap buffer overflow condition. 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. Real-world exploitability of this issue in terms of remote-code execution is currently unknown. Version 1.14.4-2 fixes the issue.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

HDFGroup hdf5

  • < 1.14.4-2affected

References