CVE-2021-45830

5.5 mediumEPSS 0.7%

Medium (5.5) in hdfgroup hdf5. EPSS 0.7% chance of exploitation in the next 30 days.

A heap-based buffer overflow vulnerability exists in HDF5 1.13.1-1 via H5F_addr_decode_len in /hdf5/src/H5Fint.c, which could cause a Denial of Service.

Severity

CVSS 3.1

5.5 medium

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

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2022-01-05
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

hdfgroup:hdf5

References

https://github.com/HDFGroup/hdf5/issues/1314
https://github.com/HDFGroup/hdf5/issues/1314

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