Medium severity · published Oct 16, 2026
CVE-2026-111712
Netcore NR256CN through 1.5.140116 Authentication Bypass via CGI Path Prefix
6.5
CVSS
0.2%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NR
NR256CN · Netcore
through 1.5.140116 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-111712
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-111712
github.com
https://github.com/lukadqq/netcore-router-public-refs/blob/a44d562736b41c944223297e9144d2ad7fa2aff1/2026.10.15-netcore-nr256cn-cgi-auth-bypass-alternate-path.md
www.vulncheck.com
https://www.vulncheck.com/advisories/netcore-nr256cn-through-1.5.140116-authentication-bypass-via-cgi-path-prefix
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Netcore NR256CN through 1.5.140116 Boa Web Server NULL Pointer Dereference DoS
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CVE-2026-112016
Netcore NR256CN through 1.5.140116 Unauthenticated Write to Fixed Boa Staging Files