CVE-2026-76856

Netcore NR255-V firmware version 1.5.130703 contains a cross-site request forgery vulnerability affecting the wan_config_set_cgi, wan_num_set_cgi, and lan_ip_change_cgi endpoints. Attackers can craft forged requests to trick authenticated administrators into modifying WAN or LAN network configuration settings without consent.

  • Published Sep 15, 2026
  • CVSS 7.0 high
  • 0.2% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-76856 at the National Vulnerability Database