CVE-2021-28814 | BDVDB-2026-155397 Detail

QNAP SystemsHelpdesk

Description#

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-269 Improper Privilege Management

References#

https://www.qnap.com/zh-tw/security-advisory/qsa-21-25

Exploit#

No public exploit known

History#

Version 12021-06-11Record published in the CVE List.
Version 22024-09-17Most recent update recorded in the CVE List.

Published

Published: 2021-06-11
Last modified: 2024-09-17

Vendor information

Vendor: QNAP Systems
Product: Helpdesk

All QNAP Systems vulnerabilities

Score

8.8 High

EPSS

1.2%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 69.0.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Privilege Escalation

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 3.0.4
Fixed
3.0.4

Scoring System

CVSS v4.0

Not available

CVSS v3.1

8.8 High

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	Low
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).