---
id: "CVE-2026-100737"
kind: "vulnerability"
aliases: ["CVE-2026-100737"]
title: "Atsumi Electric DVRs: admin can flash unauthorized firmware via hidden function"
severity: "medium"
cvss: 6.9
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["atsumi-electric", "dvr", "firmware", "infrastructure", "iot"]
not_affected_if: ["no-atsumi-dvr"]
published_at: "2026-10-20T06:16:56+00:00"
first_seen_at: "2026-10-23T21:57:20+00:00"
updated_at: "2026-10-25T03:40:38+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100737", "first_seen_at": "2026-10-23T21:57:20+00:00"}]
---

# Atsumi Electric DVRs: admin can flash unauthorized firmware via hidden function

Several Atsumi Electric digital video recorders contain a hidden function that lets a logged-in administrator upgrade the device to unauthorized firmware. An attacker holding admin credentials could replace the device's software with their own.

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

## Timeline

- 2026-10-23T21:57:20+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-100737

## 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 upgrade the affected product to unauthorized firmware.

---

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