What is CVE-2026-76852?

CVE-2026-76852 is a high-severity vulnerability in Netcore Nr268, classified under Improper Validation of Integrity Check Value. CVSS score: 8.8/10. Published 2026-09-15.

How severe is CVE-2026-76852?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Netcore Nr268

CVE-2026-76852

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 v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Netcore Nr268 — versions 1.7.121109

Weakness classification (CWE)

CWE-354 — Improper Validation of Integrity Check Value

References

disclosure@vulncheck.com (third-party-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-76852?: CVE-2026-76852 is a high-severity vulnerability in Netcore Nr268, classified under Improper Validation of Integrity Check Value. CVSS score: 8.8/10. Published 2026-09-15.
How severe is CVE-2026-76852?: High severity. CVSS v3 base score is 8.8 out of 10.