Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L N N U H H H 9.8 .3399 98.4 YES
AFFECTED Product Versions Fixed QTS unspecified – — QuTS hero unspecified – —
TIMELINE Dec 9 Reserved by qnap Apr 17 Published (CNA: qnap) Apr 11 Added to CISA KEV, remediation due 2022-05-02
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
| Date | Event | Detail |
|---|---|---|
| December 9, 2019 | Reserved | Reserved by qnap |
| April 17, 2021 | Published | Published (CNA: qnap) |
| April 11, 2022 | KEV ADDED | Added to CISA KEV, remediation due 2022-05-02 |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| QNAP Systems Inc. | QTS | — | unspecified | — |
| QNAP Systems Inc. | QuTS hero | — | unspecified | — |
Authoritative record: CVE-2020-2509 at cve.org
Vendors: qnap systems
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2020-2509 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
