CVE-2026-19023 - HDF5 h5dump Untrusted Pointer Dereference in Binary Output of Variable-Length String Datasets

CVE-2026-19023 - HDF5 h5dump Untrusted Pointer Dereference in Binary Output of Variable-Length String Datasets

https://cvefeed.io/rssfeed/latest.atom / Thu, 08/06/2026 - 01:09
CVE ID :CVE-2026-19023
Published : Aug. 5, 2026, 10:13 p.m. | 42 minutes ago
Description :Untrusted pointer dereference in the render_bin_output function in the h5dump tool in HDF5 before 2.1.1 allows attackers to cause a denial of service via a variable-length string dataset with more than one element dumped in binary mode, which corrupts the per-element stride calculation and causes subsequent elements to be read from a misaligned offset and dereferenced as a pointer.
Severity: 0.0 | NONE
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Kenya Education Network CERT(KENET-CERT) is a Cybersecurity Emergency Response Team and Co-ordination Center operated by the National Research and Education Network of Kenya. KENET-CERT coordination center promotes awareness on cybersecurity incidences as well as coordinates and assists member institutions in responding effectively to cyber security threats and incidences. KENET-CERT works closely with Kenya's National CIRT coordination center (CIRT/CC) as a sector CIRT for the academic institutions. KENET promotes use of ICT in Teaching, Learning and Research in Higher Education Institutions in Kenya. KENET aims to interconnect all the Universities, Tertiary and Research Institutions in Kenya by setting up a cost effective and sustainable private network with high speed access to the global Internet. KENET also facilitates electronic communication among students and faculties in member institutions, share learning and teaching resources by collaboration in Research and Development of Educational content.