A vulnerability, which was classified as critical, has been found in HDF5 up to 1.14.6. Affected by this issue is the function H5FS__sect_find_node of the file H5FSsection.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.

A vulnerability, which was classified as critical, has been found in HDF5 up to 1.14.6. Affected by this issue is the function H5FS__sect_find_node of the file H5FSsection.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.

Affected: openEuler:22.03-LTS-SP4: hdf5

HDF5 is a data model, library, and file format for storing and managing data. It supports an unlimited variety of datatypes, and is designed for flexible and efficient I/O and for high volume and complex data. HDF5 is portable and is extensible, allowing applications to evolve in their use of HDF5. The HDF5 Technology suite includes tools and applications for managing, manipulating, viewing, and analyzing data in the HDF5 format. Security Fix(es):

A critical vulnerability has been identified in HDF5 up to version 1.14.6. The issue affects the H5FS__sect_find_node function in the H5FSsection.c file, leading to a heap-based buffer overflow. The attack can be launched on the local host. The exploit has been publicly disclosed and may be in use.(CVE-2025-6270)

A vulnerability, classified as problematic, has been identified in HDF5 1.14.6. This issue affects the H5C__load_entry function in the file /src/H5Centry.c, leading to resource consumption. The attack requires local access. The exploit has been publicly disclosed and may be used.(CVE-2025-6817)

A vulnerability classified as problematic was found in HDF5 1.14.6, affecting the H5FS__sect_link_size function in the file src/H5FSsection.c. The manipulation leads to a heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.(CVE-2025-7069)

H5O__layout_decode in H5Olayout.c in HDF5 through 2.3.0 does not validate that a chunked dataset&a…

Affected: Ubuntu:Pro:18.04:LTS: hdf5, Ubuntu:Pro:20.04:LTS: hdf5, Ubuntu:22.04:LTS: hdf5, Ubuntu:24.04:LTS: hdf5, Ubuntu:25.10: hdf5, Ubuntu:26.04:LTS: hdf5

A vulnerability, which was classified as critical, has been found in HDF5 up to 1.14.6. Affected by this issue is the function H5FS__sect_find_node of the file H5FSsection.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.