RCE in QNAP Qts

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

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.334 (98.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: .

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-2509?
CVE-2020-2509 is a critical-severity vulnerability in QNAP Qts, classified under Command Injection. CVSS score: 9.8/10. Published 2021-04-17.
How severe is CVE-2020-2509?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-2509 known to be exploited?
Yes. CVE-2020-2509 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-04-11), indicating it is being actively exploited. 8 public proof-of-concept repositories are indexed.