CVE-2026-76856

HIGH CVSS 4.0: 7.0 EPSS 0.19%
Updated Sep 21, 2026
Netcore
Parameter Value
CVSS 7.0 (HIGH)
Type CWE-352 (Cross-Site Request Forgery (CSRF))
Vendor Netcore
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Active
User action required

Impact Assessment

Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0