CVE-2021-28814 json
Improper Access Control Vulnerability in Helpdesk
published 2021-06-11 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-15470
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 69%
- public exploits
- 0
- none known
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.
Patch / fix
- QNAP Systems Inc. Helpdesk 3.0.4
Exploit prediction
1.23% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Affected products
- QNAP Systems Inc. Helpdesk
Classification
- Weakness
-
- CWE-269 Improper Privilege Management
References
-
qnap.com
/zh-tw/security-advisory/qsa-21-25
vendor-advisory
Sources
- CVE List CVE-2021-28814
- NVD CVE-2021-28814
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