Vulnerability Intelligence Report
Legacy VioStor NVR
CVE-2023-47565
An OS command injection vulnerability has been found to affect legacy QNAP VioStor NVR models running QVR Firmware 4.x. If exploited, the vulnerability could allow authenticated users to execute commands via a network. We have already fixed the vulnerability in the following versions: QVR Firmware 5.0.0 and later
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
8.0
HIGH
Exploitability:2.1
Impact Score:5.9
EPSS Probability:73.28%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-78 ↗CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| QNAP Systems Inc. | VioStor NVR | 4.x < 5.0.0 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | QNAP Systems, Inc. · Vendor · Taiwan |
| Reserved | 2023-11-06T14:11:12 |
| Published | 2023-12-08T16:06:29 |
| Last Updated | 2025-10-21T23:05:29 |
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