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Δ / VULNERABILITY RECORD

CVE-2025-6270.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSMEDIUM / 5.3No severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Jan 08, 2026

Disclosure summary

HDF5 H5FSsection.c H5FS__sect_find_node heap-based overflow

Source-reported weakness categories

CWE-122

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

Microsoft Security Updates (CVRF) · 2025-Jun

Open original source · Updated Jan 08, 2026

HDF5 H5FSsection.c H5FS__sect_find_node heap-based overflow

Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.

Microsoft maximum product score: 5.3

VendorProduct / associationVersion / bounds
Microsoft update guideazl3 hdf5 1.14.4.3-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 hdf5 1.14.6-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guidecbl2 hdf5 1.14.4-1 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guidecbl2 hdf5 1.14.4-1 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guidecbl2 hdf5 1.14.6-1 on CBL Mariner 2.0 (MSRC status code 3)

Original records & references

PUBLISHED 2025-09-03T17:56:58-04:00
MODIFIED 2026-01-08T09:39:19-05:00
INGESTED 2026-10-08T12:50:05-04:00