CVEs / CVE-2020-2509
CVE-2020-2509: QNAP Network-Attached Storage (NAS) Command Injection Vulnerability
- Known exploited in the CISA KEV catalog since 11 Apr 2022
- critical 9.8 CVSS 3.1 (NVD)
- EPSS 33.9% chance of exploitation in the next 30 days, higher than 98% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
QNAP NAS devices contain a command injection vulnerability which could allow attackers to perform remote code execution.
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
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| QNAP Systems Inc. QTS | from unspecified, before 4.5.2.1566 Build 20210202 | 4.5.2.1566 Build 20210202 |
| QNAP Systems Inc. QTS | from unspecified, before 4.5.1.1495 Build 20201123 | 4.5.1.1495 Build 20201123 |
| QNAP Systems Inc. QTS | from unspecified, before 4.3.6.1620 Build 20210322 | 4.3.6.1620 Build 20210322 |
| QNAP Systems Inc. QTS | from unspecified, before 4.3.4.1632 Build 20210324 | 4.3.4.1632 Build 20210324 |
| QNAP Systems Inc. QTS | from unspecified, before 4.3.3.1624 Build 20210416 | 4.3.3.1624 Build 20210416 |
| QNAP Systems Inc. QTS | from unspecified, before 4.2.6 Build 20210327 | 4.2.6 Build 20210327 |
| QNAP Systems Inc. QuTS hero | from unspecified, before h4.5.1.1491 build 20201119 | h4.5.1.1491 build 20201119 |
Exploitation
| In CISA KEV since | 11 Apr 2022 |
|---|---|
| Due date for US federal agencies | 2 May 2022 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-77, CWE-78 |
References
- CVE-2020-2509 on NVD
- CVE-2020-2509 in the CISA KEV catalog
- https://www.qnap.com/en/security-advisory/qsa-21-05 Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-2509 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.