Out-of-bounds Write Affecting hdf5 package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.36% (28th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UBUNTU2604-HDF5-16226967
  • published24 Apr 2026
  • disclosed14 Mar 2025

Introduced: 14 Mar 2025

CVE-2025-2309  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:26.04 hdf5.

NVD Description

Note: Versions mentioned in the description apply only to the upstream hdf5 package and not the hdf5 package as distributed by Ubuntu. See How to fix? for Ubuntu:26.04 relevant fixed versions and status.

A vulnerability has been found in HDF5 1.14.6 and classified as critical. This vulnerability affects the function H5T__bit_copy of the component Type Conversion Logic. The manipulation leads to heap-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The vendor plans to fix this issue in an upcoming release.

CVSS Base Scores

version 3.1