CVE-2026-36539: Infoleak
Netis AC1200 Router NC21 V4.0.1.4296 exposes a CGI endpoint /cgi-bin/skkget.cgi that returns the entire router configuration as a JSON response with no authentication required. Any attacker on the LAN can send a single HTTP GET request and instantly retrieve administrator credentials, WiFi passwords, PPPoE credentials, DDNS credentials, and a full map of all connected devices.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-36539?
The severity of CVE-2026-36539 is rated high with a score of 7.3 on the CVSS scale.
How do I fix CVE-2026-36539?
To fix CVE-2026-36539, update your Netis AC1200 Router firmware to the latest version provided by the manufacturer.
What kind of information is exposed by CVE-2026-36539?
CVE-2026-36539 exposes sensitive information such as administrator credentials and WiFi passwords through an unauthenticated CGI endpoint.
Who is affected by CVE-2026-36539?
CVE-2026-36539 affects users of the Netis AC1200 Router running the firmware version V4.0.1.4296.
How can an attacker exploit CVE-2026-36539?
An attacker can exploit CVE-2026-36539 by sending a single HTTP GET request to the vulnerable CGI endpoint on the local network.