CVE-2021-28799β€”QNAP NAS Improper Authorization Vulnerability

PUBLISHEDvulnerability record
2022-03-31 Β· last modified June 21, 2025

Metadata

CVE ID:
CVE-2021-28799
Project:
QNAP
Product:
Network Attached Storage (NAS)
Date Added:
2022-03-31
Due Date:
2022-04-21
Last Updated:
June 21, 2025

Vulnerability Name

QNAP NAS Improper Authorization Vulnerability

Description

QNAP NAS running HBS 3 contains an improper authorization vulnerability which can allow remote attackers to log in to a device.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:
KNOWN

Action

Apply updates per vendor instructions.

Additional Notes

  • https://nvd.nist.gov/vuln/detail/CVE-2021-28799

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