Netis AC1200 Router CVE-2026-36539
HIGHCVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Lifecycle Timeline
3DescriptionNVD
Netis AC1200 Router NC21 V4.0.1.4296 exposes a CGI endpoint /cgi-bin/skk_get.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.
AnalysisAI
Unauthenticated configuration disclosure in the Netis AC1200 Router NC21 (firmware V4.0.1.4296) allows any LAN-connected attacker to retrieve the device's full configuration via a single HTTP GET to /cgi-bin/skk_get.cgi. The dump exposes administrator credentials, WiFi and PPPoE passwords, DDNS credentials, and a map of connected clients, enabling immediate device takeover and lateral movement. …
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RemediationAI
Within 24 hours: Audit your network for Netis AC1200 Router NC21 devices with firmware V4.0.1.4296 and document all affected units. Within 7 days: Implement network segmentation to restrict LAN access to router management interfaces; change all administrator, WiFi, and PPPoE credentials on affected devices; disable remote management if enabled. …
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External POC / Exploit Code
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