EUVD-2026-80056

| CVE-2026-76853 HIGH

Missing Support for Integrity Check (CWE-353)

2026-09-15 disclosure@vulncheck.com

GHSA-6mhv-w69c-76fg

Authentication Bypass

7.2

CVSS 4.0 · Vendor: vulncheck

Severity by source

Vendor (vulncheck) PRIMARY

7.2 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from Vendor (vulncheck) · only source for this CVE.

CVSS VectorVendor: vulncheck

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

Sep 15, 2026 - 22:31 vuln.today

CVE Published

Sep 15, 2026 - 22:16 cve.org

HIGH 7.2

DescriptionCVE.org

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.

AnalysisAI

An authenticated attacker can bypass the restore-archive prefix validation in the parame_put_file.cgi handler of Netcore NR268 firmware 1.7.121109, allowing a crafted configuration-restore archive to write files outside the intended restore path. The flaw yields a high integrity and availability impact — device configuration can be overwritten or unset, and the router can be left in an unusable state — while confidentiality is unaffected per the CVSS 4.0 vector (VC:N/VI:H/VA:H). …