CVE-2026-7136CWE-77CWE-78

Totolink A8000RU CGI cstecgi.cgi setDmzCfg os command injection

Critical · published April 27, 2026

CVSS v4.0
9.3
EPSS
3%
Percentile
88.3
In the wild
Unconfirmed
What it is

A weakness has been identified in Totolink A8000RU 7.1cu.643_b20200521. Affected by this issue is the function setDmzCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument wanIdx can lead to os command injection. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks.

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
EPSS
0.03253 · 88.3th percentile
Weaknesses
CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection'); CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-04-27T15:30Z
EPSS history
Timeline
  • 27 APR 15:30Z
    Totolink A8000RU CGI cstecgi.cgi setDmzCfg os command injection
    cvelistv5