CVE-2026-111712

6.9 mediumEPSS 0.2%

Netcore NR256CN through 1.5.140116 contains an authentication bypass vulnerability that allows unauthenticated attackers to reach protected management CGI handlers by prefixing the URI with a public route. Attackers can request paths prefixed with l7_web_auth.cgi or an .ico route to invoke protected management handlers without credentials.

CVSS 4.0: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CVSS 3.1: 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS: 0.2% chance of exploitation in the next 30 days; higher than 13% of CVEs (scores of 2026-10-25)
CWE: CWE-288
Published: 2026-10-16
Modified: 2026-10-16
Record from: the NVD, synced 2026-10-19

References

https://github.com/lukadqq/netcore-router-public-refs/blob/a44d562736b41c944223297e9144d2ad7fa2aff1/2026.10.15-netcore-nr256cn-cgi-auth-bypass-alternate-path.md
https://www.vulncheck.com/advisories/netcore-nr256cn-through-1.5.140116-authentication-bypass-via-cgi-path-prefix

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