CVE-2020-2506 HIGH

CVE-2020-2506: improper access control vulnerability in Helpdesk

Vendor Qnap Systems Inc.
Product Helpdesk
Weakness CWE-284
KEV Status Known Exploited
Published February 3, 2021
Last update October 21, 2025

CVSS base score

7.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

What the vulnerability does

01Description

The vulnerability have been reported to affect earlier versions of QTS. If exploited, this improper access control vulnerability could allow attackers to compromise the security of the software by gaining privileges, or reading sensitive information. This issue affects: QNAP Systems Inc. Helpdesk versions prior to 3.0.3.

CISA mandated remediation

02CISA Required Action

Apply updates per vendor instructions.

Key dates

03Disclosure timeline

February 3, 2021 CVE published
October 21, 2025 Record updated