# CVE-2020-2509

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

- Page: https://www.vulneraibility.com/cve/CVE-2020-2509
- CVSS: 9.8
- Known exploited: yes, in CISA KEV since 2022-04-11; CISA due date 2022-05-02
- EPSS: 33.99% (percentile 98.4)
- Unvetted proof-of-concept code on GitHub: 1 GitHub proof of concept (first 2022-07-27)
- CISA SSVC: exploitation active, automatable yes, technical impact total (assessed 2025-02-06)
- Weakness: CWE-77, CWE-78
- Published: 2021-04-17

## Affected versions

- QNAP Systems Inc. QTS: affected < 4.5.2.1566 Build 20210202; < 4.5.1.1495 Build 20201123; < 4.3.6.1620 Build 20210322; < 4.3.4.1632 Build 20210324; < 4.3.3.1624 Build 20210416; < 4.2.6 Build 20210327
- QNAP Systems Inc. QuTS hero: affected < h4.5.1.1491 build 20201119

A version outside these ranges is not a statement that it is unaffected.

## References

- [other] https://www.qnap.com/en/security-advisory/qsa-21-05
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-2509

---
Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.