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CVE-2023-47565

Status: AnalyzedHigh (8.8)⚠ Active exploitation

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

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

CISA KEV — actively exploited

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

Inyección de comandos OS (CWE-78) en servicio NVR remoto con autenticación previa (PR:L). Permite ejecución de comandos sin UI adicional (T1059).

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Privileged Account ManagementDisable or Remove Feature or ProgramVulnerability ScanningThreat Intelligence ProgramRestrict Web-Based ContentNetwork Segmentation

Affected technologies (1)

Qnap — QVR Firmware

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2023-47565",
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          "options": [
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          "version": "2.0.3",
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  "vulnStatus": "Analyzed",
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      "lang": "en",
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    },
    {
      "lang": "es",
      "value": "Se ha descubierto que una vulnerabilidad de inyección de comandos del sistema operativo afecta a los modelos QNAP VioStor NVR heredados que ejecutan el firmware QVR 4.x. Si se explota, la vulnerabilidad podría permitir a los usuarios autenticados ejecutar comandos a través de una red. Ya hemos solucionado la vulnerabilidad en las siguientes versiones: QVR Firmware 5.0.0 y posteriores"
    }
  ],
  "lastModified": "2026-06-17T06:32:55.230",
  "cisaActionDue": "2024-01-11",
  "cisaExploitAdd": "2023-12-21",
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  "cisaRequiredAction": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.",
  "cisaVulnerabilityName": "QNAP VioStor NVR OS Command Injection Vulnerability"
}