What is CVE-2023-47565?

CVE-2023-47565 is a high-severity vulnerability in Qnap Systems Inc. Viostor Nvr, classified under OS Command Injection. CVSS score: 8.0/10. Published 2023-12-08.

How severe is CVE-2023-47565?

High severity. CVSS v3 base score is 8.0 out of 10.

Is CVE-2023-47565 known to be exploited?

Yes. CVE-2023-47565 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-12-21), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.

RCE in Qnap Systems Inc. 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 fix…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.867 (99.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Qnap Systems Inc. Viostor Nvr — versions 4.x

Weakness classification (CWE)

CWE-78 — OS Command Injection

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2023-12-21. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2024-01-11.

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

Public proof-of-concept exploits

References

www.qnap.com/en/security-advisory/qsa-23-48

Frequently asked questions

What is CVE-2023-47565?: CVE-2023-47565 is a high-severity vulnerability in Qnap Systems Inc. Viostor Nvr, classified under OS Command Injection. CVSS score: 8.0/10. Published 2023-12-08.
How severe is CVE-2023-47565?: High severity. CVSS v3 base score is 8.0 out of 10.
Is CVE-2023-47565 known to be exploited?: Yes. CVE-2023-47565 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-12-21), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.