Improper Access Control Vulnerability in Helpdesk
Priority MEDIUM 41CWE-269Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-269.
Summary
An improper access control vulnerability has been reported to affect QNAP NAS. If exploited, this vulnerability allows remote attackers to compromise the security of the software. This issue affects: QNAP Systems Inc. Helpdesk versions prior to 3.0.4.
Why it matters now
EPSS 0.01225 68th percentileScored 2026-11-07
Fix Fixed Helpdesk (QNAP Systems Inc.): 3.0.4
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Helpdesk (QNAP Systems Inc.) Fixed in 3.0.4
Timeline
- 2026-10-02 Threatist record created from CVE-2021-28814
- 2026-10-03 Alias added: GHSA-c3j9-jwrq-h9fm
References
More QNAP Helpdesk vulnerabilities
- TI-2020-02218 improper access control vulnerability in Helpdesk KEVCVSS 3.1CRITICAL 9.8
- TI-2020-02219 command injection vulnerability in Helpdesk CVSS 3.1CRITICAL 9.8
- TI-2018-00668 Command injection in QNAP Helpdesk in QTS CVSS 3.0CRITICAL 9.8
- TI-2020-02212 Improper access control in QNAP Helpdesk CVSS 3.1CRITICAL 9.8
- TI-2024-33827 Improper certificate validation in QNAP Helpdesk CVSS 4.0HIGH 7.7
- TI-2018-00677 Improper privilege management in QNAP NAS devices CVSS 3.1HIGH 7.5
Sources
- CVE-2021-28814 · CVE Program
- CVE-2021-28814 · NVD
- FIRST EPSS
- GHSA-c3j9-jwrq-h9fm · GitHub Advisory Database · CC BY 4.0
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