CVE-2026-19024 (GCVE-0-2026-19024)

Vulnerability from cvelistv5 – Published: 2026-08-05 22:14 – Updated: 2026-08-06 15:30
VLAI
Title
HDF5 H5Pget_fill_value NULL Pointer Dereference via Malformed Fill Value Message
Summary
NULL pointer dereference in H5Pget_fill_value in HDF5 before 2.3.0 allows attackers to cause a denial of service via a dataset whose version 1 or 2 fill value message has the "defined" flag set together with a negative size field, which is not normalized to the library's "undefined" sentinel and reaches H5T_path_find with a NULL datatype.
Severity
8.2 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 14:36 UTC
CWE
  • CWE-476 - NULL pointer dereference
Assigner
HDFG CNA under the redhat root
CNA scorecard C 71/100 over 12 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
The HDF Group HDF5 Affected: <= 2.3.0 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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