CVE-2026-5976

CRITICAL

Totolink A7100RU CGI cstecgi.cgi setStorageCfg os command injection

Title source: cna

Description

A security flaw has been discovered in Totolink A7100RU 7.4cu.2313_b20191024. This affects the function setStorageCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation of the argument sambaEnabled results in os command injection. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks.

References (5)

Core 5

Core References

Vdb Entry, Technical Description vdb-entry technical-description

VDB-356530 | Totolink A7100RU CGI cstecgi.cgi setStorageCfg os command injection

https://vuldb.com/vuln/356530

Signature, Permissions Required signature permissions-required

VDB-356530 | CTI Indicators (IOB, IOC, TTP, IOA)

https://vuldb.com/vuln/356530/cti

Third Party Advisory third-party-advisory

Submit #791822 | Totolink A7100RU 7.4cu.2313_b20191024 Command Injection

https://vuldb.com/submit/791822

Exploit exploit

https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_162/README.md

View Exploit ZIP pw:eip

Product product

https://www.totolink.net/

Scores

CVSS v3 9.8

EPSS 0.0180

EPSS Percentile 75.6%

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 09, 2026

Tracked Since Apr 10, 2026