CVE-2026-7123

CRITICAL

Totolink A8000RU CGI cstecgi.cgi setIptvCfg os command injection

Title source: cna

Description

A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function setIptvCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation of the argument setIptvCfg results in os command injection. The attack can be initiated remotely. The exploit has been made public and could be used.

References (5)

Core 5

Core References

Vdb Entry, Technical Description vdb-entry technical-description

VDB-359722 | Totolink A8000RU CGI cstecgi.cgi setIptvCfg os command injection

https://vuldb.com/vuln/359722

Signature, Permissions Required signature permissions-required

VDB-359722 | CTI Indicators (IOB, IOC, TTP, IOA)

https://vuldb.com/vuln/359722/cti

Third Party Advisory third-party-advisory

Submit #800995 | Totolink A8000RU 7.1cu.643_b20200521 Command Injection

https://vuldb.com/submit/800995

Exploit exploit

https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_308/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/A8000RU 7.1cu.643_b20200521

Published Apr 27, 2026

Tracked Since Apr 27, 2026