CVE-2026-76870

HighCVSS 7.1/10Last modified Sep 16, 2026

Description

Netcore NR255-V version 1.5.130703 contains an out-of-bounds read vulnerability in the mtd_write pre-flash validation routine triggered by short firmware uploads. Attackers can upload a truncated firmware image via put_file_cgi.c to trigger out-of-bounds reads across main.c, check_image_uuid.c, and oemMD5Update.c.

Metrics

CVSS 3.1 7.1/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H

Weakness enumeration

CWE-125

Affected software

No affected versions have been published.

Timeline

Published: Sep 15, 2026
Last modified: Sep 16, 2026
NVD status: Deferred

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