Is CVE-2026-76856 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-76856?

CVE-2026-76856 has a CVSS v3 severity of HIGH (8.1).

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CVE-2026-76856

Description

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.