CVE-2026-36539

7.3 highEPSS 0.4%

High (7.3). EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.3 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 29% of CVEs (scores of 2026-10-31)
CWE: CWE-200
Published: 2026-05-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://github.com/sir3ns/cve-disclosure/blob/main/CVE-2026-36539/readme.md
https://github.com/sir3ns/cve-disclosure/blob/main/CVE-2026-36539/readme.md

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