OS Command Injection in QNAP VioStor NVR QVR Firmware 4.x (Fixed 5.0.0)
CVE-2023-47565 Published on December 8, 2023
Legacy VioStor NVR
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
Known Exploited Vulnerability
This QNAP VioStor NVR OS Command Injection Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. QNAP VioStar NVR contains an OS command injection vulnerability that allows authenticated users to execute commands via a network.
The following remediation steps are recommended / required by January 11, 2024: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Vulnerability Analysis
Weakness Type
What is a Shell injection Vulnerability?
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
CVE-2023-47565 has been classified to as a Shell injection vulnerability or weakness.
Products Associated with CVE-2023-47565
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Affected Versions
QNAP Systems Inc. VioStor NVR:- Version 4.x and below 5.0.0 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.