CVE-2026-36540

CVSS 7.3 HIGHEPSS 1.5%CWE-77

Vexday Risk Score

21Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 7.3EPSS 1.5%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

27 may 2026Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

Netis AC1200 Router NC21 V4.0.1.4296 is vulnerable to unauthenticated command injection via the /cgi-bin/skk_set.cgi endpoint. The password and new_pwd_confirm POST parameters are passed directly to the underlying OS shell without sanitization. An attacker can inject arbitrary shell commands by wrapping them in backticks (`) and encoding them in base64. Because the endpoint requires no authentication, any device on the LAN can achieve full Remote Code Execution on the router's operating system with a single HTTP POST request.

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

Productos afectados

n/a · n/a

Referencias

http://netis-system.com https://github.com/sir3ns/cve-disclosure/blob/main/CVE-2026-36540/readme.md