title: QTS, QuTS hero, QuTScloud
description: A heap-based buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to execute code via a network.
We have already fixed the vulnerability in the following versions:
QTS 5.1.2.2533 build 20230926 and later
QuTS hero h5.1.2.2534 build 20230927 and later
QuTScloud c5.1.5.2651 and later
problem types: CWE-122
affected:
{
defaultStatus: unaffected
product: QTS
vendor: QNAP Systems Inc.
versions:
lessThan: 5.1.2.2533 build 20230926, status: affected, version: 5.1.x, versionType: custom
}
{
defaultStatus: unaffected
product: QuTS hero
vendor: QNAP Systems Inc.
versions:
lessThan: h5.1.2.2534 build 20230927, status: affected, version: h5.1.x, versionType: custom
}
{
defaultStatus: unaffected
product: QuTScloud
vendor: QNAP Systems Inc.
versions:
lessThan: c5.1.5.2651, status: affected, version: c5.x.x, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: LOW
baseScore: 5.5
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: LOW
privilegesRequired: HIGH
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L
version: 3.1
]
format: CVSS
scenarios: GENERAL
solutions: We have already fixed the vulnerability in the following versions:
QTS 5.1.2.2533 build 20230926 and later
QuTS hero h5.1.2.2534 build 20230927 and later
QuTScloud c5.1.5.2651 and later
