---
id: CVE-2026-111712
title: Netcore NR256CN through 1.5.140116 Authentication Bypass via CGI Path Prefix
summary: >-
  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 pre…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-288
vendor: Netcore
product: NR256CN
affected:
  - NR256CN <= 1.5.140116
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-16T18:18:52.386910Z'
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T18:19:03.901Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111712'
references:
  - url: >-
      https://github.com/lukadqq/netcore-router-public-refs/blob/a44d562736b41c944223297e9144d2ad7fa2aff1/2026.10.15-netcore-nr256cn-cgi-auth-bypass-alternate-path.md
  - url: >-
      https://www.vulncheck.com/advisories/netcore-nr256cn-through-1.5.140116-authentication-bypass-via-cgi-path-prefix
    label: >-
      VulnCheck Advisory: Netcore NR256CN through 1.5.140116 Authentication
      Bypass via CGI Path Prefix
tags:
  - cve.org
ingestedAt: '2026-10-16T18:43:08.626Z'
---

## Overview

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.

## Affected

- `NR256CN <= 1.5.140116`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.