CVE-2026-76857: Netcore NR255-V

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Netcore NR255-V firmware version 1.5.130703 contains a sensitive information disclosure vulnerability in the ddns_wan_list_show.cgi endpoint and related DDNSset_cgi, IGD_GetCgiHandler, and IGD_CgiCall components. Attackers who reach this CGI handler can obtain plaintext DDNS credentials, exposing sensitive account information.

Affected products

• Netcore NR255-V: version 1.5.130703 only

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