How severe is CVE-2023-47565?

CVE-2023-47565 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-47565 being actively exploited?

Yes. CVE-2023-47565 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2023-12-21, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2023-47565?

CVE-2023-47565 affects Qnap Qvr Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-47565?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2023-47565 have an EU (EUVD) identifier?

Yes. CVE-2023-47565 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-51676. It is also flagged as exploited in the EUVD (since 2023-12-21).

When was CVE-2023-47565 published?

CVE-2023-47565 was published on 2023-12-08 and last updated on 2026-06-17.

CVE-2023-47565

CVE-2023-47565 is a high-severity vulnerability in Qnap Qvr Firmware with a CVSS 3.x base score of 8.0. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2023-12-21). The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 8.0)
EPSS exploit prediction: 73% (99th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2023-12-21)
EU (EUVD) id: EUVD-2023-51676
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2023-12-21)
Weakness: CWE-78
Affected product: Qnap Qvr Firmware
Published: 2023-12-08
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is 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
How severe is CVE-2023-47565?: CVE-2023-47565 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-47565 being actively exploited?: Yes. CVE-2023-47565 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2023-12-21, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2023-47565?: CVE-2023-47565 affects Qnap Qvr Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-47565?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2023-47565 have an EU (EUVD) identifier?: Yes. CVE-2023-47565 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-51676. It is also flagged as exploited in the EUVD (since 2023-12-21).
When was CVE-2023-47565 published?: CVE-2023-47565 was published on 2023-12-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:qnap:qvr_firmware:*:*:*:*:*:*:*:*

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