---
id: CVE-2026-76853
title: >-
  Netcore NR268 firmware version 1.7.121109 contains a security check bypass
  vulnerability in the parame_put_file.cgi restore archive prefix validation
summary: >-
  Netcore NR268 firmware version 1.7.121109 contains a security check bypass
  vulnerability in the parame_put_file.cgi restore archive prefix validation.
  Attackers can exploit the flawed prefix check in put_parame_file_cgi.c to
  bypass restr…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H'
cwe:
  - CWE-353
vendor: Netcore
product: NR268
affected:
  - NR268 1.7.121109
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-2026-76853'
references:
  - url: >-
      https://github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr268-restore-bypass.md
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/netcore-nr268-1.7.121109-security-check-bypass-in-parame-put-file-cgi
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-16T19:07:25.523668Z'
ingestedAt: '2026-09-15T22:45:31.285Z'
epss: 0.00218
epssPercentile: 0.12491
---

## Overview

Netcore NR268 firmware version 1.7.121109 contains a security check bypass vulnerability in the parame_put_file.cgi restore archive prefix validation. Attackers can exploit the flawed prefix check in put_parame_file_cgi.c to bypass restricted restore archive handling.

## Remediation

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