CVE-2026-19028

H5Zfilterfletcher32 in H5Zfletcher32.c in HDF5 through 2.3.0 computes the data length to checksum by subtracting the 4-byte trailing checksum size from the input buffer size without checking that the buffer is at least 4 bytes, allowing a sizet underflow. This allows attackers to cause a denial o...

CVE-2026-17573

A double free vulnerability was discovered in the HDF5 library. Processing a crafted HDF5 file containing an oversized chunk size field via h5repack may cause the application to abort due to a double free...

DEBIAN-CVE-2026-17573

A double free vulnerability was discovered in the HDF5 library. Processing a crafted HDF5 file containing an oversized chunk size field via h5repack may cause the application to abort due to a double free...

CVE-2026-26199

HDF5 is a high-performance library and a file format specification that implements the HDF5 data model. If H5Igetname is invoked on a group id with 0 for the size parameter, it will underflow when trying to place a null terminator in the buffer. This can occur if H5Igetname is invoked in a way...

Arbitrary HDF5 File Read via Virtual Dataset Bypass in keras-team/keras

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model.weights.h5: h5py.ExternalLink at Group level silently followed during load_model(), bypassing CVE-2025-9905 fix — information disclosure from arbitrary HDF5 files

Keras 3.x introduced a fix for CVE-2025-9905 by checking dataset.external in H5IOStore.verifydataset. This check blocks datasets whose raw bytes are stored in external files via the HDF5 "External Data Storage" mechanism. However, HDF5 supports a second, unrelated external-reference mechanism:...

hdf5: HDF5 heap-based overflow

A heap-based buffer overflow was found in HDF5. This flaw exists in the H5Faddrdecodelen function of the /hdf5/src/H5Fint.c file and may be triggered by input manipulation to the function. Local access is required to exploit this flaw...

EUVD-2018-9188

Malware in sbrugna...

Linux Distros Unpatched Vulnerability : CVE-2018-17437

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Memory leak in the H5Odtypedecodehelper function in H5Odtype.c in the HDF HDF5 through 1.10.3 library allows attackers to cause a denial of service memory...

CVE-2025-2153

CVE-2025-2153 impacts HDF5 1.14.6, specifically the H5SM_delete function in H5SM.c of the h5 File Handler. The vulnerability is a heap-based buffer overflow that can be triggered remotely; exploitation is described as difficult and is publicly disclosed. Connected sources confirm this as a critic...

CVE-2019-8396

A buffer overflow in H5Olayoutencode in H5Olayout.c in the HDF HDF5 through 1.10.4 library allows attackers to cause a denial of service via a crafted HDF5 file. This issue was triggered while repacking an HDF5 file, aka "Invalid write of size 2."...

Buffer overflow

A buffer overflow in H5Olayoutencode in H5Olayout.c in the HDF HDF5 through 1.10.4 library allows attackers to cause a denial of service via a crafted HDF5 file. This issue was triggered while repacking an HDF5 file, aka "Invalid write of size 2."...

The vulnerability of the ReadGifImageDesc() function (gifread.c) in the HDF5 library, which allows a hacker to cause a service failure

The vulnerability of the ReadGifImageDesc function in the HDF5 library arises from the occurrence of operations outside the buffer’s boundaries in memory. Exploiting this vulnerability could allow a malicious actor to cause service interruptions by using a specially crafted HDF5 file...

CVE-2018-17432

A NULL pointer dereference in H5Osdspaceencode in H5Osdspace.c in the HDF HDF5 through 1.10.3 library allows attackers to cause a denial of service via a crafted HDF5 file...

CVE-2018-17436

ReadCode in decompress.c in the HDF HDF5 through 1.10.3 library allows attackers to cause a denial of service invalid write access via a crafted HDF5 file. This issue was triggered while converting a GIF file to an HDF file...

CVE-2018-17433

A heap-based buffer overflow in ReadGifImageDesc in gifread.c in the HDF HDF5 through 1.10.3 library allows attackers to cause a denial of service via a crafted HDF5 file. This issue was triggered while converting a GIF file to an HDF file...

UBUNTU-CVE-2018-17437

Memory leak in the H5Odtypedecodehelper function in H5Odtype.c in the HDF HDF5 through 1.10.3 library allows attackers to cause a denial of service memory consumption via a crafted HDF5 file...

CVE-2018-17432

A NULL pointer dereference in H5Osdspaceencode in H5Osdspace.c in the HDF HDF5 through 1.10.3 library allows attackers to cause a denial of service via a crafted HDF5 file...

CVE-2018-17435

A heap-based buffer over-read in H5Oattrdecode in H5Oattr.c in the HDF HDF5 through 1.10.3 library allows attackers to cause a denial of service via a crafted HDF5 file. This issue was triggered while converting an HDF file to GIF file...

CVE-2018-17432

A NULL pointer dereference in H5Osdspaceencode in H5Osdspace.c in the HDF HDF5 through 1.10.3 library allows attackers to cause a denial of service via a crafted HDF5 file...