CVE-2020-2507Network attack vector

Unauthenticated command execution via undisclosed input path

Published Feb 3, 2021 · Updated Sep 16, 2024

Command injection in QNAP Helpdesk before 3.0.3 allows remote attackers to run arbitrary commands through an undisclosed input path. QNAP discloses neither the vulnerable component nor how untrusted input reaches an operating-system command. No authentication or user interaction is required, and arbitrary commands execute on the affected NAS.

CVSS severity9.8
Critical
EPSS probability3.04%
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 Helpdesk before 3.0.3 allows remote attackers to run arbitrary commands through an undisclosed input path. QNAP discloses neither the vulnerable component nor how untrusted input reaches an operating-system command. No authentication or user interaction is required, and arbitrary commands execute on the affected NAS.

The record

CVE
CVE-2020-2507
Published
Feb 3, 2021
Updated
Sep 16, 2024
Vendor
Linn Products Limited
Product
Helpdesk
Classifications
CWE-78, CWE-77, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 3, 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=unspecified <3.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Linn Products Limited · Helpdeskversion=unspecified <3.0.3

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8QNAP Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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
Privilegesunauthenticated
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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