CVE-2024-33873 HDF5 Library through 1.14.3 has a heap-based buffer overflow in H5D__scatter_mem in H5Dscatgath.c.

Api.Msrc.Microsoft • February 21, 2026

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Multiple CVEs Identified in HDF5 Library Version 1.14.3 Three critical vulnerabilities have been identified in the HDF5 Library version 1.14.3, all related to heap-based buffer overflows. The vulnerabilities, CVE-2024-33877, CVE-2024-33873, and CVE-2024-32624, could lead to memory corruption and potential exploitation. Affected components include H5Tconv.c and H5Dscatgath.c, among others. 3 sources 42

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