CVE-2020-2507 (GCVE-0-2020-2507)

Vulnerability from cvelistv5 – Published: 2021-02-03 15:51 – Updated: 2024-09-16 19:40
VLAI Shadowserver Previdian
Title
command injection vulnerability in Helpdesk
Summary
The vulnerability have been reported to affect earlier versions of QTS. If exploited, this command injection vulnerability could allow remote attackers to run arbitrary commands. This issue affects: QNAP Systems Inc. Helpdesk versions prior to 3.0.3.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
  • CWE-78 - OS Command Injection
Assigner
References
Impacted products
Vendor Product Version CPE status
QNAP Systems Inc. Helpdesk Affected: unspecified , < 3.0.3 (custom)
guessed Create a notification for this product.
Date Public
2020-10-07 00:00
Credits
Jose Antonio Pérez Piedra
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 83be0a50-1c02-42e1-bfed-5c068036154a

Vulnerability ID: CVE-2020-2507

Status: Confirmed

Status Updated: 2026-07-14 00:00 UTC

Exploited: Yes

Characteristics
Severity: 98.0
Timestamps
First Seen: 2024-02-29
Asserted: 2024-02-29
Last Seen: 2026-07-14
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: QNAP / QNAP QTS | Class: nas | Severity: Critical (CVSS 9.8) | IoT: yes | In CISA KEV: no | Honeypot connections on 2026-07-14: 36
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 1
Iot yes
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class nas
7D Avg 0
Vendor QNAP
30D Avg 0
90D Avg 0
Product QNAP QTS
Cisa Kev no
Connections 36
Observation Date 2026-07-14
Vulnerability Class CVSS
Vulnerability Score 9.8
Vulnerability Severity Critical
References
Created: 2026-06-30 09:24 UTC | Updated: 2026-07-16 01:00 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 8c4ba8b5-712a-4825-9826-8180a6976eda

Vulnerability ID: CVE-2020-2507

Status: Confirmed

Status Updated: 2025-08-16 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2025-08-16
Asserted: 2025-08-16
Scope
Notes: KEVIntel entry: command injection vulnerability in Helpdesk | Affected: QNAP Systems Inc. / Helpdesk | CVSS: 9.8 (CRITICAL) | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title command injection vulnerability in Helpdesk
Vendor QNAP Systems Inc.
Product Helpdesk
Added Date 2025-08-16T00:00:00.000Z
Cvss Score 9.8
Epss Score None
Cvss Severity CRITICAL
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-06-23 14:03 UTC | Updated: 2026-07-10 06:14 UTC
Show details on NVD website
To clipboard 

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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.