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CVE-2026-76852 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

Netcore NR268 firmware version 1.7.121109 has an improper integrity verification flaw in mtd_write allowing forged firmware authenticity checks. Attackers can exploit put_file.cgi and check_image_uuid.c to bypass firmware signature validation and load unauthorized firmware images.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr268-firmware-forgery.md	[email protected]	Technical Description
https://www.vulncheck.com/advisories/netcore-nr268-1.7.121109-forgeable-firmware-authenticity-check-in-mtd-write	[email protected]	Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-354	Improper Validation of Integrity Check Value	[email protected]

Affected Products

Product	Versions
Netcore NR268	NR268-V1.7.121109.bin
CPE No CPEs found in CPE dictionary for this product. Remediation No remediation found in references.

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 17, 2026	CVE Modified	CISA-ADP
Sep 15, 2026	New CVE Received	[email protected]