title: QTS, QuTScloud
description: An incorrect authorization vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to bypass intended access restrictions via a network.
QTS 5.x, QuTS hero are not affected.
We have already fixed the vulnerability in the following versions:
QuTScloud c5.1.5.2651 and later
QTS 4.5.4.2627 build 20231225 and later
problem types: CWE-863
affected:
{
defaultStatus: unaffected
product: QuTScloud
vendor: QNAP Systems Inc.
versions:
lessThan: c5.1.5.2651, status: affected, version: c5.x.x, versionType: custom
}
{
defaultStatus: unaffected
product: QTS
vendor: QNAP Systems Inc.
versions:
lessThan: 4.5.4.2627 build 20231225, status: affected, version: 4.5.x, versionType: custom
status: unaffected, version: 5.1.x
}
{
defaultStatus: unaffected
product: QuTS hero
vendor: QNAP Systems Inc.
versions:
status: unaffected, version: h5.1.x
status: unaffected, version: h4.5.x
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 5
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: LOW
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
version: 3.1
]
format: CVSS
scenarios: GENERAL
solutions: We have already fixed the vulnerability in the following versions:
QuTScloud c5.1.5.2651 and later
QTS 4.5.4.2627 build 20231225 and later
