---
id: "CVE-2018-14933"
kind: "vulnerability"
aliases: ["CVE-2018-14933"]
title: "nuuo nvrmini firmware: upgrade_handle.php on NUUO NVRmini devices allows Remote Command Execution via shell metacharacters in the uploaddir\u2026"
severity: "critical"
cvss: 10.0
epss: null
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "NUUO NVRmini Devices", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "nuuo nvrmini firmware", "fixed": [], "affected": "= 2016", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["embedded-linux", "exploited", "infrastructure", "iot", "nuuo", "nvrmini", "video-surveillance"]
not_affected_if: ["no-nuuo-nvrmini-devices"]
published_at: "2018-08-04T19:29:00+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T22:29:05+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2018-14933", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-14933", "first_seen_at": "2026-10-23T22:29:05+00:00"}]
---

# nuuo nvrmini firmware: upgrade_handle.php on NUUO NVRmini devices allows Remote Command Execution via shell metacharacters in the uploaddir…

NUUO NVRmini network video recorders contain an OS command injection flaw in the uploaddir parameter of the writeuploaddir command. An unauthenticated attacker can run arbitrary operating system commands on the device by sending shell metacharacters in that parameter.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:NUUO NVRmini Devices affected ? fixed ?
- vendor:nuuo nvrmini firmware affected = 2016 fixed ?

## How to check

Identify any NUUO NVRmini device on the network; check the model and firmware against the vendor advisory (not in sources).

## Fix

Discontinue use of the product, since CISA states it is end-of-life and end-of-service; replace it with a supported device.
Unisolated devices should be removed from internet exposure until replaced.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2018-14933
- 2026-10-23T22:29:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2018-14933

## From the sources

NUUO NVRmini devices contain an OS command injection vulnerability. This vulnerability allows remote command execution via shell metacharacters in the uploaddir parameter for a writeuploaddir command.

CISA required action: The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_