Vulnerability Description
Untrusted pointer dereference in the render_bin_output function in the h5dump tool in HDF5 before 2.3.0 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.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-19023?
CVE-2026-19023 is a documented vulnerability. Untrusted pointer dereference in the render_bin_output function in the h5dump tool in HDF5 before 2.3.0 allows attackers to cause a denial of service via a variable-length string dataset with more tha...
How severe is CVE-2026-19023?
CVSS scoring is not yet available for CVE-2026-19023. Check NVD for updates.
Is there a patch for CVE-2026-19023?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.