---
id: CVE-2026-76867
title: >-
  Netcore NR255-V firmware version 1.5.130703 contains a stored cross-site
  scripting vulnerability in routing and NAT configuration CGI components
  including routing_tab_add_cgi, routing_table_list_show_cgi,
  route_policy_add_cgi, and route_…
summary: >-
  Netcore NR255-V firmware version 1.5.130703 contains a stored cross-site
  scripting vulnerability in routing and NAT configuration CGI components
  including routing_tab_add_cgi, routing_table_list_show_cgi,
  route_policy_add_cgi, and route_…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: Netcore
product: NR255-V
affected:
  - NR255-V 1.5.130703
published: '2026-09-15'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:16:47.650'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-76867'
references:
  - url: >-
      https://github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr255v-route-nat-stored-xss.md
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/netcore-nr255-v-1.5.130703-stored-cross-site-scripting-in-route-nat-configuration-cgi-handlers
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-17T16:54:40.664871Z'
epss: 0.00235
epssPercentile: 0.12808
ingestedAt: '2026-09-15T22:45:31.290Z'
---

## Overview

Netcore NR255-V firmware version 1.5.130703 contains a stored cross-site scripting vulnerability in routing and NAT configuration CGI components including routing_tab_add_cgi, routing_table_list_show_cgi, route_policy_add_cgi, and route_policy_parame_show_cgi. Attackers can inject persistent script payloads through these route and NAT configuration pages, which are then executed in the context of users viewing the affected pages.

## Remediation

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