CVE-2026-5854

CRITICAL

Totolink A7100RU CGI cstecgi.cgi setWiFiEasyCfg os command injection

Title source: cna

Description

A vulnerability was detected in Totolink A7100RU 7.4cu.2313_b20191024. Affected by this issue is the function setWiFiEasyCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation of the argument merge results in os command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used.

References (5)

[Vdb Entry, Technical Description] https://vuldb.com/vuln/356380

[Signature, Permissions Required] https://vuldb.com/vuln/356380/cti

[Third Party Advisory] https://vuldb.com/submit/791276

[Exploit] https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_160/README.md

View Exploit ZIP pw:eip

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

Scores

CVSS v3 9.8

EPSS 0.0032

EPSS Percentile 55.6%

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