title: Stack Overflow Vulnerability in QVR Elite, QVR Pro and QVR Guard
description: A stack buffer overflow vulnerability has been reported to affect QNAP device running QVR Elite, QVR Pro, QVR Guard. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of QVR Elite, QVR Pro, QVR Guard: QuTS hero h5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QuTS hero h4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 4.5.4: QVR Guard 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Guard 2.1.3.0 (2021/12/06) and later
problem types: CWE-120 Buffer Overflow
affected:
{
platforms: QuTS hero h5.0.0
product: QVR Elite
vendor: QNAP Systems Inc.
versions:
lessThan: 2.1.4.0 (2021/12/06), status: affected, version: unspecified, versionType: custom
}
{
platforms: QuTS hero h4.5.4
product: QVR Elite
vendor: QNAP Systems Inc.
versions:
lessThan: 2.1.4.0 (2021/12/06), status: affected, version: unspecified, versionType: custom
}
{
platforms: QTS 5.0.0
product: QVR Elite
vendor: QNAP Systems Inc.
versions:
lessThan: 2.1.4.0 (2021/12/06), status: affected, version: unspecified, versionType: custom
}
{
platforms: QTS 4.5.4
product: QVR Elite
vendor: QNAP Systems Inc.
versions:
lessThan: 2.1.4.0 (2021/12/06), status: affected, version: unspecified, versionType: custom
}
{
platforms: QTS 4.5.4
product: QVR Pro
vendor: QNAP Systems Inc.
versions:
lessThan: 2.1.3.0 (2021/12/06), status: affected, version: unspecified, versionType: custom
}
{
platforms: QTS 5.0.0
product: QVR Pro
vendor: QNAP Systems Inc.
versions:
lessThan: 2.1.3.0 (2021/12/06), status: affected, version: unspecified, versionType: custom
}
{
platforms: QTS 4.5.4
product: QVR Guard
vendor: QNAP Systems Inc.
versions:
lessThan: 2.1.3.0 (2021/12/06), status: affected, version: unspecified, versionType: custom
}
{
platforms: QTS 5.0.0
product: QVR Guard
vendor: QNAP Systems Inc.
versions:
lessThan: 2.1.3.0 (2021/12/06), status: affected, version: unspecified, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 8.1
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
version: 3.1
]
solutions: We have already fixed this vulnerability in the following versions of QVR Elite, QVR Pro, QVR Guard:
QuTS hero h5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later
QuTS hero h4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later
QTS 5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later
QTS 4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later
QTS 4.5.4: QVR Pro 2.1.3.0 (2021/12/06) and later
QTS 5.0.0: QVR Pro 2.1.3.0 (2021/12/06) and later
QTS 4.5.4: QVR Guard 2.1.3.0 (2021/12/06) and later
QTS 5.0.0: QVR Guard 2.1.3.0 (2021/12/06) and later