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CVE-2023-47565

QNAP VioStor NVR OS Command Injection

8.0 HIGHActively exploited (CISA KEV)EPSS 73.3%
  1. Published8 Dec 2023
  2. Added to CISA KEV21 Dec 2023
  3. Remediation due11 Jan 2024
Actively exploited (CISA KEV)

QNAP VioStar NVR contains an OS command injection vulnerability that allows authenticated users to execute commands via a network.

Added to KEV: 21 Dec 2023Federal remediation due: 11 Jan 2024

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

CVSS 3.1 breakdown

Attack vectorAdjacent
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

QNAP Qvr Firmware≥ 4.0.0 < 5.0.0

Remediation

Fixed in
QNAP Qvr Firmware≥ 5.0.0

References

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Frequently asked

Is CVE-2023-47565 being actively exploited?

Yes. CVE-2023-47565 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 21 Dec 2023.

How severe is CVE-2023-47565?

CVE-2023-47565 has a CVSS 3.1 base score of 8.0, rated high. EPSS estimates a 73.3% probability of exploitation.

Which products are affected by CVE-2023-47565?

Affected products include QNAP Qvr Firmware.

How do I fix CVE-2023-47565?

Upgrade affected software to a fixed version, for example QNAP Qvr Firmware 5.0.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-47565 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.