CVE-2020-2508Network attack vector

Authenticated command execution via undisclosed input handling

Published Jan 11, 2021 · Updated Sep 16, 2024

Command injection in QNAP QTS before 4.5.1.1456 and QuTS hero before h4.5.1.1472 allows remote authenticated users to execute commands. QNAP has not published the affected application, input field, or code path that passes attacker-controlled data to a command interpreter. Exploitation requires high privileges over the network and grants command execution in the compromised application.

CVSS severity7.2
High
EPSS probability1.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in QNAP QTS before 4.5.1.1456 and QuTS hero before h4.5.1.1472 allows remote authenticated users to execute commands. QNAP has not published the affected application, input field, or code path that passes attacker-controlled data to a command interpreter. Exploitation requires high privileges over the network and grants command execution in the compromised application.

The record

CVE
CVE-2020-2508
Published
Jan 11, 2021
Updated
Sep 16, 2024
Vendor
Linn Products Limited
Product
QuTS hero
Classifications
CWE-78, CWE-77, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jan 11, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< h4.5.1.1472

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Linn Products Limited · QuTS heroversion=< h4.5.1.1472
Linn Products Limited · QTSversion=< 4.5.1.1456

Published CVSS scores

7.2QNAP Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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