VulnerabilityAnalyzed

CVE-2026-17574

HDF5 contains a NULL pointer dereference vulnerability.

MEDIUM 5.2EPSS 0.10%

Does this matter?

Lower severity and a low EPSS score (0.10%). Track it; it rarely justifies an emergency change on its own.

Description

HDF5 contains a NULL pointer dereference vulnerability. Processing a crafted HDF5 file containing an attribute with an invalid variable-length datatype type field may cause the application to crash when the attribute is read.

CVSS 4.0: 5.2 MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 0.10% probability · 1th percentile
CISA KEV: Not listed
Weakness: CWE-476, CWE-617
Affected: hdfgroup/hdf5
Source: 0253b833-3e77-4dfe-9d57-17db1a2f0a74

References

https://github.com/HDFGroup/hdf5/commit/3fa6ed6e9dfeebbc784e21d8c48e31e35a8042bcPatch

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.