CVE-2026-19023
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 6.8
- CVSS vector
- CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- EPSS probability
- 0.12%
- CWE
- CWE-822
- Published
- 2026-08-05
- Last modified
- 2026-08-06
Affected products
- The HDF Group HDF5
- The HDF Group HDF5
Weakness type
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