---
id: CVE-2026-76865
title: >-
  Netcore NR255-V version 1.5.130703 contains a null pointer dereference
  vulnerability in the QoS setter CGI handlers filter_conn_del_cgi.c and
  gre_prio_set_cgi.c due to unchecked atoi() results
summary: >-
  Netcore NR255-V version 1.5.130703 contains a null pointer dereference
  vulnerability in the QoS setter CGI handlers filter_conn_del_cgi.c and
  gre_prio_set_cgi.c due to unchecked atoi() results. An attacker can trigger
  the flaw by supplyi…
severity: medium
cvss: 4.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-476
vendor: Netcore
product: NR255-V
affected:
  - NR255-V 1.5.130703
published: '2026-09-15'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T20:17:30.640'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-76865'
references:
  - url: >-
      https://github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr255v-null-deref-atoi.md
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/netcore-nr255-v-1.5.130703-null-pointer-dereference-via-unchecked-atoi-in-qos-setter-handlers
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-16T19:31:33.689629Z'
ingestedAt: '2026-09-15T22:45:31.289Z'
epss: 0.00362
epssPercentile: 0.29978
---

## Overview

Netcore NR255-V version 1.5.130703 contains a null pointer dereference vulnerability in the QoS setter CGI handlers filter_conn_del_cgi.c and gre_prio_set_cgi.c due to unchecked atoi() results. An attacker can trigger the flaw by supplying crafted input to these handlers, causing a denial of service.

## Remediation

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