CVE-2026-76856

Netcore NR255-V 1.5.130703 Cross-Site Request Forgery in WAN/LAN Configuration Endpoints

State: Published
Severity: 7.0 High
Published: Sep 15, 2026
Updated: Sep 21, 2026
Reserved: Aug 19, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	7.0 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N	VulnCheck
3.1	8.1 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H	VulnCheck

Weaknesses

CWE-352 Cross-Site Request Forgery (CSRF)

Affected Products

Product	Versions
NR255-VNetcore	1.5.130703Affected

References

Netcore router public references: CSRF on WAN/LAN Reconfiguration Endpointsthird-party-advisory
VulnCheck Advisory: Netcore NR255-V 1.5.130703 Cross-Site Request Forgery in WAN/LAN Configuration Endpointsthird-party-advisory

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.