CVE-2026-76869: Netcore NR255-V

High severity, CVSS 7.2. EPSS: 0.6% chance of exploitation in the next 30 days.

Netcore NR255-V version 1.5.130703 contains a stack-based buffer overflow in reboot_timer_set.cgi caused by improper sscanf token parsing. Attackers can exploit this flaw by submitting crafted input to the affected endpoint to corrupt stack memory.

Affected products

• Netcore NR255-V: version 1.5.130703 only

Published 2026-09-15. Last modified 2026-09-17.