CVE-2026-76852 HIGH

CVE-2026-76852: Netcore NR268 1.7.121109 Forgeable Firmware Authenticity Check in mtd_write

Vendor Netcore
Product NR268
Weakness CWE-354
Published September 15, 2026
Last update September 15, 2026
View on NVD All CVEs

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

September 15, 2026 CVE published