---
id: CVE-2026-76863
title: >-
  Netcore NR255-V version 1.5.130703 contains a sensitive information disclosure
  vulnerability in the mod_qos_bandwidth plan.json handling within
  filter_conns_dump_cgi.c and IGD_CgiCall.c
summary: >-
  Netcore NR255-V version 1.5.130703 contains a sensitive information disclosure
  vulnerability in the mod_qos_bandwidth plan.json handling within
  filter_conns_dump_cgi.c and IGD_CgiCall.c. Authenticated users with broad
  roles can access th…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-863
vendor: Netcore
product: NR255-V
affected:
  - NR255-V 1.5.130703
published: '2026-09-15'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T20:21:01.047'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-76863'
references:
  - url: >-
      https://github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr255v-qos-telemetry-disclosure.md
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/netcore-nr255-v-1.5.130703-sensitive-information-disclosure-via-qos-bandwidth-plan-routes
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-16T19:03:13.763854Z'
ingestedAt: '2026-09-15T22:45:31.288Z'
epss: 0.00221
epssPercentile: 0.12881
---

## Overview

Netcore NR255-V version 1.5.130703 contains a sensitive information disclosure vulnerability in the mod_qos_bandwidth plan.json handling within filter_conns_dump_cgi.c and IGD_CgiCall.c. Authenticated users with broad roles can access these QoS read routes to obtain live network telemetry beyond their intended privilege level.

## Remediation

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