title: QTS, QuTS hero, QuTScloud
description: A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to launch a denial-of-service (DoS) attack via a network.
QES is not affected.
We have already fixed the vulnerability in the following versions:
QuTS hero h5.0.1.2515 build 20230907 and later
QuTS hero h5.1.0.2453 build 20230708 and later
QuTS hero h4.5.4.2476 build 20230728 and later
QuTScloud c5.1.0.2498 and later
QTS 5.1.0.2444 build 20230629 and later
QTS 4.5.4.2467 build 20230718 and later
problem types: CWE-476
affected:
{
defaultStatus: unaffected
product: QuTS hero
vendor: QNAP Systems Inc.
versions:
lessThan: h5.0.1.2515 build 20230907, status: affected, version: h5.0.x, versionType: custom
lessThan: h5.1.0.2453 build 20230708, status: affected, version: h5.1.x, versionType: custom
lessThan: h4.5.4.2476 build 20230728, status: affected, version: h4.5.x, versionType: custom
}
{
defaultStatus: unaffected
product: QuTScloud
vendor: QNAP Systems Inc.
versions:
lessThan: c5.1.0.2498, status: affected, version: c5.x, versionType: custom
}
{
defaultStatus: unaffected
product: QTS
vendor: QNAP Systems Inc.
versions:
lessThan: 5.1.0.2444 build 20230629, status: affected, version: 5.1.x, versionType: custom
lessThan: 4.5.4.2467 build 20230718, status: affected, version: 4.5.x, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 4.9
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: HIGH
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
version: 3.1
]
format: CVSS
scenarios: GENERAL
solutions: We have already fixed the vulnerability in the following versions:
QuTS hero h5.0.1.2515 build 20230907 and later
QuTS hero h5.1.0.2453 build 20230708 and later
QuTS hero h4.5.4.2476 build 20230728 and later
QuTScloud c5.1.0.2498 and later
QTS 5.1.0.2444 build 20230629 and later
QTS 4.5.4.2467 build 20230718 and later
