CVE-2025-2912
CSIRTS triage
- What
- HDF5 library H5Omessage.c contains heap-based buffer overflow in H5O_msg_flush function.
- Who is affected
- Systems using HDF5 library to process untrusted HDF5 files are vulnerable.
- Urgency
- Low urgency; CVSS 3.3 indicates limited exploitability and impact scope.
- Action
- Update HDF5 library to a patched version addressing CVE-2025-2912.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 18% of all EPSS-scored CVEs.
Advisory coverage (1)
- lowCVE-2025-2912: HDF5 H5Omessage.c H5O_msg_flush heap-based overflowmsrc · 2026-08-06
External references
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[](https://www.csirts.com/cve/CVE-2025-2912)