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CVE PROGRAM SOURCE RECORD5.5 Medium

CVE-2026-17572

HDF5 SOHM List Index Heap Buffer Overflow

Description

Heap-based buffer overflow in the SOHM list-index deserialization code in HDF5 through 2.1.1 on all platforms allows attackers to cause a denial of service (crash) via a crafted HDF5 file whose shared-message list index declares a num_messages count exceeding list_max, triggering out-of-bounds heap reads and writes in H5SM__cache_list_deserialize and H5SM__cache_list_verify_chksum.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

The HDF Group HDF5

Default version status: unaffected

  • <= 2.1.1affected

References