CVEvulnerability

CVE-2020-2509

9.8 CRITICAL Known exploited Published 2021-04-17 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

QNAP Network-Attached Storage (NAS) Command Injection Vulnerability — QNAP QNAP Network-Attached Storage (NAS)

QNAP NAS devices contain a command injection vulnerability which could allow attackers to perform remote code execution.

Added to KEV: 2022-04-11
Remediation due: 2022-05-02
Ransomware use: Unknown
Required action: Apply updates per vendor instructions.
Notes: https://nvd.nist.gov/vuln/detail/CVE-2020-2509

Status: Analyzed
Published: 2021-04-17
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 ([email protected]): 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0): 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected]): 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses: CWE-77, CWE-78

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 configurations

• qnap qts (< 4.2.6) • qnap qts (>= 4.3.5 < 4.3.6) • qnap qts (>= 4.4.0 < 4.5.1) • qnap qts 4.2.6 • qnap qts 4.3.3.0174 • qnap qts 4.3.3.0868 • qnap qts 4.3.3.0998 • qnap qts 4.3.3.1051 • qnap qts 4.3.3.1098 • qnap qts 4.3.3.1161 • qnap qts 4.3.3.1252 • qnap qts 4.3.3.1315 • qnap qts 4.3.3.1386 • qnap qts 4.3.3.1432 • qnap qts 4.3.4.0358 • qnap qts 4.3.4.0370 • qnap qts 4.3.4.0372 • qnap qts 4.3.4.0374 • qnap qts 4.3.4.0387 • qnap qts 4.3.4.0411 • qnap qts 4.3.4.0416 • qnap qts 4.3.4.0427 • qnap qts 4.3.4.0434 • qnap qts 4.3.4.0435 • qnap qts 4.3.4.0451 • qnap qts 4.3.4.0483 • qnap qts 4.3.4.0486 • qnap qts 4.3.4.0506 • qnap qts 4.3.4.0516 • qnap qts 4.3.4.0526 • qnap qts 4.3.4.0551 • qnap qts 4.3.4.0557 • qnap qts 4.3.4.0561 • qnap qts 4.3.4.0569 • qnap qts 4.3.4.0593 • qnap qts 4.3.4.0597 • qnap qts 4.3.4.0604 • qnap qts 4.3.4.0899 • qnap qts 4.3.4.1029 • qnap qts 4.3.4.1082 • qnap qts 4.3.4.1190 • qnap qts 4.3.4.1282 • qnap qts 4.3.4.1368 • qnap qts 4.3.4.1417 • qnap qts 4.3.4.1463 • qnap qts 4.3.6 • qnap qts 4.3.6.0895 • qnap qts 4.3.6.0907 • qnap qts 4.3.6.0923 • qnap qts 4.3.6.0944 • qnap qts 4.3.6.0959 • qnap qts 4.3.6.0979 • qnap qts 4.3.6.0993 • qnap qts 4.3.6.1013 • qnap qts 4.3.6.1033 • qnap qts 4.3.6.1070 • qnap qts 4.3.6.1154 • qnap qts 4.3.6.1218 • qnap qts 4.3.6.1263 • qnap qts 4.3.6.1286 … and 12 more

Weakness · CWE (2)

CWE-77 Improper Neutralization of Special Elements used in a Command weakness
CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness

References