CyberSecBulletin

HDF5 vulnerabilities

We track 8 vulnerabilities in HDF5 products. 8 are rated high or critical, and none are known to be exploited. The most recent was published on June 29, 2025.

8vulnerabilities
0critical
8high
0exploited
7.8average CVSS score

Latest HDF5 vulnerabilities

  • 7.8 High severity

    HDF5: Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVE-2025-6857HDF5

    A vulnerability has been found in HDF5 1.14.6 and classified as problematic. Affected by this vulnerability is the function H5G__node_cmp3 of the file src/H5Gnode.c. The manipulation leads to stack-based buffer overflow. It is possible to launch the attack on

  • 7.8 High severity

    HDF5: Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVE-2025-6856HDF5

    A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5FL__reg_gc_list of the file src/H5FL.c. The manipulation leads to use after free. Attacking locally is a requirement. The exploit has been disclosed to t

  • 7.8 High severity

    HDF5: Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVE-2025-6818HDF5

    A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5O__chunk_protect of the file /src/H5Ochunk.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit h

  • 7.8 High severity

    HDF5: Out-of-bounds Write

    CVE-2025-6516HDF5

    A vulnerability has been found in HDF5 up to 1.14.6 and classified as critical. This vulnerability affects the function H5F_addr_decode_len of the file /hdf5/src/H5Fint.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached loc

  • 7.8 High severity

    HDF5: Out-of-bounds Write

    CVE-2025-2310HDF5

    A vulnerability was found in HDF5 1.14.6 and classified as critical. This issue affects the function H5MM_strndup of the component Metadata Attribute Decoder. The manipulation leads to heap-based buffer overflow. Attacking locally is a requirement. The exploit

  • 7.8 High severity

    HDF5: Out-of-bounds Write

    CVE-2025-2309HDF5

    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 t

  • 7.8 High severity

    HDF5: Out-of-bounds Write

    CVE-2025-2308HDF5

    A vulnerability, which was classified as critical, was found in HDF5 1.14.6. This affects the function H5Z__scaleoffset_decompress_one_byte of the component Scale-Offset Filter. The manipulation leads to heap-based buffer overflow. An attack has to be approach

  • 8.1 High severity

    HDF5: Out-of-bounds Write

    CVE-2025-2153HDF5

    A vulnerability, which was classified as critical, was found in HDF5 1.14.6. Affected is the function H5SM_delete of the file H5SM.c of the component h5 File Handler. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack rem