CVE-2026-36540

Katalog CVE

CVSS 7.3 · High EPSS 1,3%

Kerentanan Improper Neutralization of Special Elements used in a Command ('Command Injection'). Skor CVSS 3.1 7.3 (High) menurut CISA ADP.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

27 Mei 2026

Terakhir diubah

5 Juli 2026

Status NVD

Deferred

CVSS 3.1

7.3 (High), sumber CISA ADP
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

EPSS (30 hari)

1,3% peluang dieksploitasi; lebih tinggi dari 70,1% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

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