Historical catalog analysis: CISA added this entry on December 18, 2024. The entry reflects catalog information retrieved on August 31, 2026, not a snapshot archived on the inclusion date. Check current vendor guidance before acting.
What the vulnerability is
CVE-2018-14933 is an OS command injection vulnerability (CWE-78) affecting NUUO NVRmini devices. The flaw allows for remote command execution when shell metacharacters are included in the uploaddir parameter during a writeuploaddir command.
Exposure and applicability
This vulnerability applies to organizations utilizing NUUO NVRmini hardware. Because this is a command injection flaw at the system level, an attacker capable of sending the specific writeuploaddir command could potentially execute arbitrary code on the device. This exposure is particularly critical for infrastructure owners who have legacy surveillance hardware integrated into their broader network environments.
Remediation priorities
Based on the source data, there is no available patch or software update to remediate this vulnerability because the NVRmini product line has been designated as end-of-life (EoL) and/or end-of-service (EoS).
Our analysis suggests the following prioritized actions for vulnerability management teams:
1. Asset Identification: Immediately audit network inventories and MAC address tables to identify all active NUUO NVRmini devices.
2. Decommissioning: Since the vendor advises discontinuing use of the product, these devices should be removed from service and replaced with supported hardware.
3. Network Isolation (Interim): If immediate removal is not feasible, our analysis suggests isolating these devices on a dedicated VLAN with no outbound internet access and strict ingress/egress filtering to limit the ability of an attacker to reach the management interface.
How to validate remediation
Verification in this case does not involve checking a version number or applying a patch, as no such fix exists. Remediation is verified through evidence of removal:
* Physical and Logical Audit: Confirming the physical removal of the hardware from the environment.
* Network Scanning: Performing a discovery scan to ensure that the specific IP addresses previously assigned to NVRmini devices are no longer active or responding on the network.
Limits and open questions
Because the product is EoL, there is a significant residual risk for any organization that continues to operate these devices; they will remain permanently vulnerable to CVE-2018-14933. It remains unknown whether this vulnerability has been utilized in ransomware campaigns. Furthermore, because no patch exists, compensating controls such as network isolation only reduce the likelihood of exploitation and do not eliminate the underlying vulnerability.
Source and editorial note
CVE-2018-14933: NUUO NVRmini Devices OS Command Injection Vulnerability · Source date: December 18, 2024 · Retrieved August 31, 2026.
Material facts are tied to the cited primary source. Recommendations are independent defensive analysis unless attributed to the source. Confirm consequential decisions against current authoritative guidance.
Archive date: December 21, 2024. The displayed post date is assigned three days after the source date to organize this retrospective archive; it does not mean this site published the analysis then. First published by this site: October 31, 2026 at 00:10 UTC.
Request a Vulnerability Assessment
Turn security intelligence into action.
Discuss your exposure, priorities, and the evidence needed to validate the outcome.
Request a security assessment ↗