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CVSS 9.8 · CRITICAL

CVE-2026-7156

A vulnerability was detected in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function CsteSystem of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument HTTP results in os command injection. The attack may be launched remotely. The exploit is now public and may be used.

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Análisis

This vulnerability affects specific firmware for Totolink consumer routers, which is considered niche or vendor-specific hardware not relevant to the professional web and mobile development stack. While the vulnerability allows remote code execution, it does not impact the Linux, Docker, or cloud infrastructure used by the community.

Severidad

Puntaje: 9.8(CRITICAL)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV: NETWORK
AC: LOW
PR: NONE
UI: NONE
S: UNCHANGED
C: HIGH
I: HIGH
A: HIGH
Tipo de falla (CWE): CWE-77CWE-78

EPSS

Probabilidad de explotación (próx. 30 días): 0.0125 (1.3%)
Percentil: 79.5%
EPSS: 2026-05-06

Descripción técnica

A vulnerability was detected in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function CsteSystem of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument HTTP results in os command injection. The attack may be launched remotely. The exploit is now public and may be used.

Publicada: 27/4/2026, 21:16:44
Última modificación: 28/4/2026, 20:24:58

Referencias

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