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Known Exploited Vulnerability
8.8
HIGH CVSS 3.1
CVE-2023-47565
QNAP VioStor NVR OS Command Injection Vulnerability - [Actively Exploited]
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

INFO

Published Date :

Dec. 8, 2023, 4:15 p.m.

Last Modified :

Jan. 27, 2025, 9:52 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

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

Required Action :

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

Notes :

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

Affected Products

The following products are affected by CVE-2023-47565 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Qnap qvr_firmware
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
CVSS 3.1 HIGH [email protected]
Solution
Upgrade the QNAP VioStor QVR Firmware to mitigate an OS command injection vulnerability.
  • Upgrade QNAP VioStor QVR Firmware to version 5.0.0 or later.
  • If upgrading is not possible, consider isolating affected devices from the network until a solution is applied.
Public PoC/Exploit Available at Github

CVE-2023-47565 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-47565.

URL Resource
https://www.qnap.com/en/security-advisory/qsa-23-48 Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-23-48 Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-47565 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-47565 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
Ostorlab/KEV

Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.

cisa-kev vulnerability 0day cisa exploits

Updated: 2 days, 18 hours ago
585 stars 41 fork 41 watcher
Born at : April 19, 2022, 8:58 a.m. This repo has been linked 1289 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-47565 vulnerability anywhere in the article.

  • Daily CyberSecurity
Digiever NVR Flaws (CVE-2025-10264, CVE-2025-10265) Let Hackers Steal Credentials & Take Control

The Taiwan Computer Emergency Response Team (TWCERT/CC) has issued a vulnerability note warning of two critical security flaws in Digiever’s Network Video Recorder (NVR) product line. Tracked as CVE-2 ... Read more

Published Date: Sep 15, 2025 (1 week, 3 days ago)
  • Daily CyberSecurity
TP-Link NVR Update: Command Injection Flaws Expose Devices to Remote Code Execution

TP-Link has issued a security advisory warning users of two critical operating system command injection vulnerabilities affecting its VIGI NVR1104H-4P V1 and VIGI NVR2016H-16MP V2 network video record ... Read more

Published Date: Jul 24, 2025 (2 months ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2023-47565 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Modified Analysis by [email protected]

    Jan. 27, 2025

    Action Type Old Value New Value
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://www.qnap.com/en/security-advisory/qsa-23-48
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Dec. 22, 2023

    Action Type Old Value New Value
    Added Date Added 2023-12-21
    Added Vulnerability Name QNAP VioStor NVR OS Command Injection Vulnerability
    Added Due Date 2024-01-11
    Added Required Action Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
  • Initial Analysis by [email protected]

    Dec. 13, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://www.qnap.com/en/security-advisory/qsa-23-48 No Types Assigned https://www.qnap.com/en/security-advisory/qsa-23-48 Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:o:qnap:qvr_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.0 up to (excluding) 5.0.0
  • CVE Received by [email protected]

    Dec. 08, 2023

    Action Type Old Value New Value
    Added 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
    Added Reference QNAP Systems, Inc. https://www.qnap.com/en/security-advisory/qsa-23-48 [No types assigned]
    Added CWE QNAP Systems, Inc. CWE-78
    Added CVSS V3.1 QNAP Systems, Inc. AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 8.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

79.31 }} -0.64%

score

0.99046

percentile