PT-2026-31834

CVE-2026-5994

Published

2026-04-10

Updated

2026-04-28

Description by

CVSS 3.1

Critical

MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Totolink A7100RU version 7.4cu.2313 b20191024

Description A security flaw exists in the CGI Handler component of Totolink A7100RU version 7.4cu.2313 b20191024. Manipulation of the telnet enabled argument within the setTelnetCfg function in the /cgi-bin/cstecgi.cgi file can lead to os command injection. This allows for remote execution of commands. A public exploit is available.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, restrict access to the /cgi-bin/cstecgi.cgi file.

Exploitability

Exploit

Fix

Impacts

Researchers

Ltzhust

Vendors

Affected products

Weakness enumeration

CWE-78: Improper Neutralization of Special Elements used in an OS Command (\'OS Command Injection\')

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

Related identifiers