{"cve":"CVE-2020-2509","nvd":{"published":"2021-04-17T04:15:11.327","modified":"2026-06-17T03:12:15.447","status":"Analyzed","description":"A command injection vulnerability has been reported to affect QTS and QuTS hero. If exploited, this vulnerability allows attackers to execute arbitrary commands in a compromised application. We have already fixed this vulnerability in the following versions: QTS 4.5.2.1566 Build 20210202 and later QTS 4.5.1.1495 Build 20201123 and later QTS 4.3.6.1620 Build 20210322 and later QTS 4.3.4.1632 Build 20210324 and later QTS 4.3.3.1624 Build 20210416 and later QTS 4.2.6 Build 20210327 and later QuTS hero h4.5.1.1491 build 20201119 and later","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-77","CWE-78"],"references":["https://www.qnap.com/en/security-advisory/qsa-21-05","https://www.qnap.com/en/security-advisory/qsa-21-05","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-2509"],"products":["qnap:qts","qnap:quts_hero"],"source":"nvd","synced_at":"2026-10-19T21:17:01.373894544+00:00"},"epss":{"cve":"CVE-2020-2509","score":0.33987,"percentile":0.98395,"date":"2026-11-01"},"kev":{"cve":"CVE-2020-2509","date_added":"2022-04-11","due_date":"2022-05-02","vendor":"QNAP","product":"QNAP Network-Attached Storage (NAS)","known_ransomware":false},"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."]}