CVE-2021-46394

Katalog CVE

CVSS 9.8 · Critical EPSS 2,7%

Kerentanan Out-of-bounds Write pada tenda ax3 firmware. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

There is a stack buffer overflow vulnerability in the formSetPPTPServer function of Tenda-AX3 router V16.03.12.10_CN. The v13 variable is directly retrieved from the http request parameter startIp. Then v13 will be splice to stack by function sscanf without any security check, which causes stack overflow. By POSTing the page /goform/SetPptpServerCfg with proper startIp, the attacker can easily perform remote code execution with carefully crafted overflow data.

Rincian

Terbit di NVD

4 Maret 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-787: Out-of-bounds Write

EPSS (30 hari)

2,7% peluang dieksploitasi; lebih tinggi dari 85,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/sec-bin/IoT-CVE/tree/main/Tenda/AX3/4 exploit · advisory pihak ketiga