CVE-2026-19023
Description
AI Translation Available
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.
822
Untrusted Pointer Dereference
IncompleteCommon Consequences
Security Scopes Affected:
Confidentiality
Availability
Integrity
Potential Impacts:
Read Memory
Dos: Crash, Exit, Or Restart
Execute Unauthorized Code Or Commands
Modify Memory
Applicable Platforms
Languages:
Memory-Unsafe, C, C++
https://github.com/HDFGroup/hdf5/issues/6486