CVE-2026-19025
MEDIUM
6,8
Source: 0253b833-3e77-4dfe-9d57-17db1a2f0a74
Attack Vector: local
Attack Complexity: low
Privileges Required: none
User Interaction: passive
Confidentiality: N/A
Integrity: N/A
Availability: N/A
Description
AI Translation Available
H5O__layout_decode in H5Olayout.c in HDF5 through 2.3.0 does not validate that a chunked dataset's stored chunk-layout dimensionality matches its dataspace rank when an existing dataset is opened, whereas this check is performed only at dataset-creation time. This allows attackers to cause a denial of service (divide-by-zero and application crash in H5S__hyper_iter_get_seq_list in src/H5Shyper.c) via a crafted HDF5 file with mismatched chunk/dataspace ranks that is opened and read via H5Dopen2 and H5Dread, e.g. by the h5repack tool.
EPSS (Exploit Prediction Scoring System)
Trend Analysis
EPSS (Exploit Prediction Scoring System)
Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.
EPSS Score
0,0012
Percentile
0,0th
Updated
EPSS Score Trend (Last 3 Days)
369
Divide By Zero
DraftCommon Consequences
Security Scopes Affected:
Availability
Potential Impacts:
Dos: Crash, Exit, Or Restart
Applicable Platforms
All platforms may be affected
https://github.com/HDFGroup/hdf5/issues/6491
https://github.com/HDFGroup/hdf5/issues/6491