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Vulnerability record · CVE-2026-76852 · published 15 September 2026

CVE-2026-76852: Netcore NR268 firmware version 1.7.121109 has an improper integrity verification flaw in mtd_write allowing fo…

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.

8.7 CVSS 4.0 High EPSS 0.27% · top 82.7% CWE-354 · CWE-354 Deferred
8.7CVSS 4.0 base score
0.27%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
17 Sep 2026Last modified by NVD

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.

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/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:

References

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Source: NIST National Vulnerability Database (record CVE-2026-76852), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.