{"cve":"CVE-2021-45833","nvd":{"published":"2022-01-05T21:15:07.833","modified":"2026-06-17T04:14:07.973","status":"Modified","description":"A Stack-based Buffer Overflow Vulnerability exists in HDF5 1.13.1-1 via the H5D__create_chunk_file_map_hyper function in /hdf5/src/H5Dchunk.c, which causes a Denial of Service (context-dependent).","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-787"],"references":["https://github.com/HDFGroup/hdf5/issues/1313","https://github.com/HDFGroup/hdf5/issues/1313"],"products":["hdfgroup:hdf5"],"source":"nvd","synced_at":"2026-10-19T21:26:33.761856376+00:00"},"epss":{"cve":"CVE-2021-45833","score":0.00713,"percentile":0.53683,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}