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    High-severity heap overflow vulnerability disclosed in HDF5โ—๐Ÿšจ EUVD-2026-93991 ๐Ÿ“Š Score: 8.5/10 (CVSS v3.1) ๐Ÿ“ฆ Product: HDF5 ๐Ÿข Vendor: The HDF Group ๐Ÿ“… Updated: 2026-10-06 ๐Ÿ“ A heap-basMmastodonTechnologyCybersecurity08 h ago

    A high-severity vulnerability, EUVD-2026-93991, has been catalogued in the HDF5 data format library maintained by The HDF Group. The flaw is a heap-based buffer overflow in H5VM_array_fill() in src/H5VM.c affecting HDF5 versions before 2.2.0, with a CVSS v3.1 score of 8.5. It can let a remote attacker crash applications and potentially execute arbitrary code. Security feeds circulated the advisory on 6 October 2026.