CVE-2021-46243

6.5 mediumEPSS 1.0%

Medium (6.5) in hdfgroup hdf5. EPSS 1.0% chance of exploitation in the next 30 days.

An untrusted pointer dereference vulnerability exists in HDF5 v1.13.1-1 via the function H5O__dtype_decode_helper () at hdf5/src/H5Odtype.c. This vulnerability can lead to a Denial of Service (DoS).

Severity

CVSS 3.1

6.5 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS: 1.0% chance of exploitation in the next 30 days; higher than 61% of CVEs (scores of 2026-11-01)
CWE: CWE-476
Published: 2022-01-21
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

hdfgroup:hdf5

References

https://github.com/HDFGroup/hdf5/issues/1326
https://github.com/HDFGroup/hdf5/issues/1326

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