CVE-2026-5852

CRITICAL

Totolink A7100RU CGI cstecgi.cgi setIptvCfg os command injection

Title source: cna

Description

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

References (5)

[Vdb Entry, Technical Description] https://vuldb.com/vuln/356378

[Signature, Permissions Required] https://vuldb.com/vuln/356378/cti

[Third Party Advisory] https://vuldb.com/submit/791272

[Exploit] https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_158/README.md

View Exploit ZIP pw:eip

[Product] https://www.totolink.net/

Scores

CVSS v3 9.8

EPSS 0.0125

EPSS Percentile 79.4%

Attack Vector NETWORK

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

Details

CWE

CWE-77 CWE-78

Status published

Products (1)

Totolink/A7100RU 7.4cu.2313_b20191024

Published Apr 09, 2026

Tracked Since Apr 09, 2026