High severity7.1NVD Advisory· Published Sep 15, 2026
CVE-2026-76870
CVE-2026-76870
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.
Affected products
2- Range: 1.5.130703
Patches
Vulnerability mechanics
References
2News mentions
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