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cve 2025 6816

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CVE-2025-6816 is a heap-based buffer overflow vulnerability in HDF5 version 1.14.6, specifically in the H5O__fsinfo_encode function within src/H5Ofsinfo.c. This flaw affects the serialization of object headers in the HDF5 library, which is widely used in scientific computing, engineering, and data-intensive applications for handling .h5 files. A public proof-of-concept exploit exists that can trigger a crash, making it a practical risk for any service or product that processes untrusted HDF5 files. The vulnerability has been documented and fixed, and users are advised to apply patches or updates to mitigate potential exploitation. Discussions on WindowsForum cover the risks, fixes, and mitigations for this issue.
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    HDF5 CVE-2025-6816 Heap Overflow: Risks, Fixes, and Mitigations

    A heap-based buffer overflow in HDF5’s object-header serialization has been publicly documented and fixed, and defenders need to treat it as a practical risk for any service or product that opens untrusted .h5 files: CVE‑2025‑6816 affects HDF5 1.14.6 in the function H5O__fsinfo_encode (file...
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    • cve 2025 6816 hdf5 vulnerability heap overflow security mitigation
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    • Forum: Security Alerts
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