---
id: "CVE-2026-97627"
kind: "vulnerability"
aliases: ["CVE-2026-97627"]
title: "Atsumi Electric DVRs: hidden feature lets an admin run OS commands"
severity: "high"
cvss: 8.6
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: [{"name": "ADX5004/ADX5008/ADX404/ADX3004/ADX3008/ADX3016/ADX204", "fixed": ["10.8.237"], "affected": "< 10.8.237", "ecosystem": "vendor"}, {"name": "ADX1004/ADX1008/ADX2016", "fixed": [], "affected": "all versions", "ecosystem": "vendor"}]
ecosystems: []
tags: ["atsumi-electric", "cwe-912", "dvr", "infrastructure", "iot", "self-hosted"]
not_affected_if: ["adx5016", "auth-required", "no-admin-accounts-exposed", "no-network-connection"]
published_at: "2026-10-20T06:16:58+00:00"
first_seen_at: "2026-10-23T21:57:20+00:00"
updated_at: "2026-10-24T00:18:02+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-97627", "first_seen_at": "2026-10-23T21:57:20+00:00"}, {"source": "analyst", "url": null, "first_seen_at": "2026-10-24T00:18:02+00:00"}]
---

# Atsumi Electric DVRs: hidden feature lets an admin run OS commands

Atsumi Electric ADX-series EX-SDI/network DVRs ship an undocumented maintenance service, reachable over the network, that lets an administrator-level user run arbitrary OS commands (CWE-912). A second one in the same advisory (CVE-2026-100737) allows upgrading to unauthorized firmware. Needs the admin password. Found by NICT/NICTER. CVSS 3.0 7.2, 4.0 8.6.

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

## Affected

- vendor:ADX5004/ADX5008/ADX404/ADX3004/ADX3008/ADX3016/ADX204 affected < 10.8.237 fixed 10.8.237
- vendor:ADX1004/ADX1008/ADX2016 affected all versions fixed ?

## How to check

Look up the model and firmware version in the DVR's system info screen. Affected: ADX5004/5008/ADX404/ADX3004/3008/3016/ADX204 with firmware before Ver.10.8.237; ADX1004/1008/ADX2016 on any version. ADX5016 is not affected.

## Fix

Upgrade ADX5004/5008/404/3004/3008/3016/204 to firmware Ver.10.8.237 (e.g. ndvr_adx5004_10.8.237.dax, edvr_adx3004_10.8.237.dat; download from the Atsumi notice). ADX1004/1008/2016 are end of sale with no fix: run them with no network connection, or replace them with a current model. Until patched, keep the DVR off the internet and change the admin password.

## Timeline

- 2026-10-23T21:57:20+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-97627
- 2026-10-24T00:18:02+00:00 analyst — Read vendor (atsumi.co.jp info-20261005) and JVN#88864366 / CVE record: versions and fixes from those. No exploitation or PoC found; did not search social posts. Sibling CVE-2026-100737 (unauthorized firmware upload) is in the same advisory.

## Documents

- [advisory] Atsumi Electric: ADX series DVR hidden function vulnerability (2026/10/20) https://www.atsumi.co.jp/info-20261005.html
- [advisory] JVN#88864366: Atsumi Electric DVRs contain hidden functionality issues https://jvn.jp/en/jp/JVN88864366/

## From the sources

Hidden functionality issue exists in Multiple DVRs (Digital Video Recorders) provided by Atsumi Electric Co., Ltd. A user who can log in to the product with the administrator privilege may execute arbitrary OS commands.

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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_