CVE-2026-6112

CRITICAL

Totolink A7100RU CGI cstecgi.cgi setRadvdCfg os command injection

Title source: cna

Description

A weakness has been identified in Totolink A7100RU 7.4cu.2313_b20191024. Affected is the function setRadvdCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument maxRtrAdvInterval causes os command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.

References (5)

Core 5

Core References

Vdb Entry, Technical Description vdb-entry technical-description

VDB-356972 | Totolink A7100RU CGI cstecgi.cgi setRadvdCfg os command injection

https://vuldb.com/vuln/356972

Signature, Permissions Required signature permissions-required

VDB-356972 | CTI Indicators (IOB, IOC, TTP, IOA)

https://vuldb.com/vuln/356972/cti

Third Party Advisory third-party-advisory

Submit #792245 | Totolink A7100RU 7.4cu.2313_b20191024 Command Injection

https://vuldb.com/submit/792245

Exploit exploit

https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_177/README.md

View Exploit ZIP pw:eip

Product product

https://www.totolink.net/

Scores

CVSS v3 9.8

EPSS 0.0177

EPSS Percentile 75.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact total

Details

CWE

CWE-77 CWE-78

Status published

Products (1)

Totolink/A7100RU 7.4cu.2313_b20191024

Published Apr 12, 2026

Tracked Since Apr 12, 2026