VULNERABILITY INTELLIGENCE

CVE-2021-28809

CVSS score10 HIGH

EPSS probability16.09%

CISA KEVNot currently listed

Published2021-07-08

Last modified2026-06-17

Description

An improper access control vulnerability has been reported to affect certain legacy versions of HBS 3. If exploited, this vulnerability allows attackers to compromise the security of the operating system.QNAP have already fixed this vulnerability in the following versions of HBS 3: QTS 4.3.6: HBS 3 v3.0.210507 and later QTS 4.3.4: HBS 3 v3.0.210506 and later QTS 4.3.3: HBS 3 v3.0.210506 and later