What is CVE-2026-76859?

CVE-2026-76859 is a medium-severity vulnerability in Netcore Nr255-V, classified under Insufficiently Protected Credentials. CVSS score: 6.5/10. Published 2026-09-15.

How severe is CVE-2026-76859?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Netcore Nr255-V

CVE-2026-76859

Netcore NR255-V version 1.5.130703 contains a sensitive information disclosure vulnerability in the user_pass_show.cgi component. Low-privilege attackers can exploit this flaw via ui_config_2.xml and misc.js to disclose router credentials.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Netcore Nr255-v — versions 1.5.130703

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

References

disclosure@vulncheck.com (third-party-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-76859?: CVE-2026-76859 is a medium-severity vulnerability in Netcore Nr255-V, classified under Insufficiently Protected Credentials. CVSS score: 6.5/10. Published 2026-09-15.
How severe is CVE-2026-76859?: Medium severity. CVSS v3 base score is 6.5 out of 10.