{"cve":"CVE-2020-25340","nvd":{"published":"2021-02-16T15:15:13.197","modified":"2026-06-17T03:06:44.300","status":"Modified","description":"An issue was discovered in NFStream 5.2.0. Because some allocated modules are not correctly freed, if the nfstream object is directly destroyed without being used after it is created, it will cause a memory leak that may result in a local denial of service (DoS).","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-401"],"references":["https://github.com/ntop/nDPI/issues/994","https://github.com/ntop/nDPI/issues/994"],"products":["nfstream:nfstream"],"source":"nvd","synced_at":"2026-10-19T21:15:50.279857260+00:00"},"epss":{"cve":"CVE-2020-25340","score":0.00332,"percentile":0.2645,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-whmq-cfm5-j8mj","url":"https://osv.dev/vulnerability/GHSA-whmq-cfm5-j8mj","summary":"NFStream Local Denial of Service (DoS)","modified":"2024-09-26T14:38:49Z","packages":[{"ecosystem":"PyPI","name":"nfstream","purl":"pkg:pypi/nfstream","ranges":["5.2.0"],"fixed":[]}]},{"id":"PYSEC-2021-68","url":"https://osv.dev/vulnerability/PYSEC-2021-68","summary":"","modified":"2026-06-10T17:02:23.634445530Z","packages":[{"ecosystem":"PyPI","name":"nfstream","purl":"pkg:pypi/nfstream","ranges":["<6.0.0"],"fixed":["6.0.0"]}]}],"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."]}