CVE-2026-7242

CRITICAL

Totolink A8000RU CGI cstecgi.cgi setOpenVpnClientCfg os command injection

Title source: cna

Description

A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function setOpenVpnClientCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument enabled can lead to os command injection. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.

References (5)

Core 5

Core References

Vdb Entry, Technical Description vdb-entry technical-description

VDB-359849 | Totolink A8000RU CGI cstecgi.cgi setOpenVpnClientCfg os command injection

https://vuldb.com/vuln/359849

Signature, Permissions Required signature permissions-required

VDB-359849 | CTI Indicators (IOB, IOC, TTP, IOA)

https://vuldb.com/vuln/359849/cti

Third Party Advisory third-party-advisory

Submit #803265 | Totolink A8000RU 7.1cu.643_b20200521 Command Injection

https://vuldb.com/submit/803265

Exploit exploit

https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_326/README.md

View Exploit ZIP pw:eip

Product product

https://www.totolink.net/

Scores

CVSS v3 9.8

EPSS 0.0245

EPSS Percentile 82.2%

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 28, 2026

Tracked Since Apr 28, 2026