SARA / Free Tools / KEV / CVE-2023-47565

CVE-2023-47565 on CISA KEV

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.

CISA KEV — Actively Exploited

QNAP VioStor NVR OS Command Injection Vulnerability

Vendor / Product
— / QNAP / VioStor NVR
Added to KEV
2023-12-21
BOD 22-01 due
2024-01-11
Ransomware use
Unknown
CVSS / EPSS
8.0 HIGH · EPSS 85.89%

01What CISA says about this vulnerability

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.

02Required action — verbatim from CISA

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

03Notes & references

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

VendorProductVersions
QNAP Systems Inc.VioStor NVR4.x

06Detection

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection:

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