How severe is CVE-2023-47565?

CVE-2023-47565 has a CVSS 3.1 base score of 8 (HIGH). EPSS estimates a 73.3% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2023-47565: Legacy VioStor

CISA Known Exploited Vulnerabilities

QNAP VioStor NVR OS Command Injection Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2023-12-21

Remediation due

2024-01-11

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

CISA notes
https://www.qnap.com/en/security-advisory/qsa-23-48 ; https://nvd.nist.gov/vuln/detail/CVE-2023-47565

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

Severity

CVSS 3.1 · CNA8 HIGH

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

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
QNAP Systems Inc.	VioStor NVR	4.x to <5.0.0

References

1 Links

Other references

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

Record Details

Published

2023-12-08

Last updated

2025-10-21

Assigner (CNA)

qnap

Credited to

Chad Seaman and Larry Cashdollar of Akamai Technologies reported this vulnerability to CISA

More from QNAP Systems Inc.

CVE-2022-2759310

DeadBolt Ransomware

CVE-2021-2879910

Improper Authorization Vulnerability in HBS 3 (Hybrid Backup Sync)

CVE-2020-25099.8

Command Injection Vulnerability in QTS and QuTS hero

CVE-2018-199536.1

QNAP NAS File Station Cross-Site Scripting Vulnerability

Related Tool Categories

Tool categories that test for or protect against this vulnerability class.

CWE-78 · OS Command Injection

Application Security Tools Penetration Testing Tools

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.