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.

Published 2026-09-15 · last modified 2026-09-17.

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.

EPSS exploit prediction

EPSS: 0.004 (29.8th percentile), scored 2026-10-31.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Netcore Nr255-V — versions 1.5.130703

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

References

github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr2… (third-party-advisory)
www.vulncheck.com/advisories/netcore-nr255-v-1.5.130703-sensitive-information-d… (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.