---
id: "CVE-2026-111712"
kind: "vulnerability"
aliases: ["CVE-2026-111712"]
title: "Netcore NR256CN router: authentication bypass exposes management handlers without credentials"
severity: "medium"
cvss: 6.9
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["embedded", "infrastructure", "netcore", "nr256cn", "router", "web-management"]
not_affected_if: ["management-interface-not-reachable", "not-nr256cn-hardware"]
published_at: "2026-10-16T18:17:55+00:00"
first_seen_at: "2026-10-23T21:57:13+00:00"
updated_at: "2026-10-25T03:42:17+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111712", "first_seen_at": "2026-10-23T21:57:13+00:00"}]
---

# Netcore NR256CN router: authentication bypass exposes management handlers without credentials

Netcore NR256CN routers through firmware 1.5.140116 let unauthenticated attackers reach protected management CGI handlers by prefixing the request path with a public route such as l7_web_auth.cgi or an .ico path. An attacker can invoke administrative functions on the device without logging in.

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

## How to check

- unknown

## Fix

- unknown

## Timeline

- 2026-10-23T21:57:13+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-111712

## From the sources

Netcore NR256CN through 1.5.140116 contains an authentication bypass vulnerability that allows unauthenticated attackers to reach protected management CGI handlers by prefixing the URI with a public route. Attackers can request paths prefixed with l7_web_auth.cgi or an .ico route to invoke protected management handlers without credentials.

---

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