CVE-2026-36539
High
Description
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.
SeverityHigh
CVSS7.3
Exploit probability—
ProductAC1200 Router NC21
PublishedMay 27, 2026
First seenMay 27, 2026
Weakness typeCWE-200Sensitive information exposure
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Netis AC1200 Router NC21 | 4.0.1.4296 | — |
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