CVE-2025-2308: HDF5 Scale-Offset Filter H5Z__scaleoffset_decompress_one_byte heap-based overflow
CSIRTS triage
- What
- The Scale-Offset Filter decompression function has a heap-based buffer overflow in single-byte processing.
- Who is affected
- Applications using HDF5 library to process files with Scale-Offset filtered datasets.
- Urgency
- Medium; heap overflow can cause crashes or code execution when processing malicious files.
- Action
- Upgrade HDF5 to patched version or disable Scale-Offset filter until patch is available.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-2308
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2025-23080.37% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 30% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2025-2308 | coverage & exploitation status | NVD · CVE.org |
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