CVE-2023-47565

Name: CVE-2023-47565
Creator: NVD / NIST
Published: 2023-12-08T16:15:16.367+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10Actively ExploitedEPSS 73.28%

Last modified Jun 17, 2026

CVE-2023-47565 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. CISA has confirmed active exploitation in the wild. EPSS estimates a 73.28% chance of exploitation in the next 30 days.

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

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

73.28%

99.4th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Jan 11, 2024.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Qnap	Qvr Firmware	>= 4.0.0, < 5.0.0

References

https://www.qnap.com/en/security-advisory/qsa-23-48Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-23-48Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-47565US Government Resource

Timeline

Published: Dec 8, 2023
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-47565?

How severe is CVE-2023-47565?

CVE-2023-47565 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 73.28% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2023-47565?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-47565?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST