CVE-2026-76857

Netcore NR255-V 1.5.130703 Plaintext DDNS Credential Disclosure via ddns_wan_list_show.cgi

State: Published
Severity: 7.1 High
Published: Sep 15, 2026
Updated: Sep 17, 2026
Reserved: Aug 19, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	VulnCheck

Weaknesses

CWE-522 Insufficiently Protected Credentials

Affected Products

Product	Versions
NR255-VNetcore	1.5.130703Affected

References

Netcore router public references: DDNS Plaintext Credential Disclosure via ddns_wan_list_show.cgithird-party-advisory
VulnCheck Advisory: Netcore NR255-V 1.5.130703 Plaintext DDNS Credential Disclosure via ddns_wan_list_show.cgithird-party-advisory

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