CVE-2026-26200

🔴 HIGH

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 deni...

Published
Feb 19, 2026
Last Modified
Feb 20, 2026
Views
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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 (1)

hdfgroup - hdf5

Version: *

CVSS Scores

CVSS 3.1 7.8
7.8
HIGH
CVSS 2.0 7.8

References

Additional Information

Source
security-advisories@github.com
State
Analyzed

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