CVE-2026-7154 - Totolink A8000RU CGI cstecgi.cgi setAdvancedInfoShow os command injection

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CRITICAL

Totolink A8000RU CGI cstecgi.cgi setAdvancedInfoShow os command injection

Published Apr 27, 2026

9.3

CRITICAL

CVSS 4.0

EPSS 3.25%

Description

A weakness has been identified in Totolink A8000RU 7.1cu.643_b20200521. This affects the function setAdvancedInfoShow of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument tty_server can lead to os command injection. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.

Affected products

Vendor TOTOLINK Product n/a Default
n/a
- Version
  7.1cu.643_b20200521
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

TOTOLINK

n/a

Version	Status	Constraints
7.1cu.643_b20200521	affected	-

Remediation

No remediation recorded yet.

Weaknesses (2)

CWE-77

CWE-78

OS Command Injection

References (6)

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-25918
Advisory
https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_318/README.md
exploit
https://vuldb.com/submit/801140
third-party-advisory
https://vuldb.com/vuln/359753
vdb-entrytechnical-description
https://vuldb.com/vuln/359753/cti
signaturepermissions-required
https://www.totolink.net/
product

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-25918		Advisory
https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_318/README.md		exploit
https://vuldb.com/submit/801140		third-party-advisory
https://vuldb.com/vuln/359753		vdb-entrytechnical-description
https://vuldb.com/vuln/359753/cti		signaturepermissions-required
https://www.totolink.net/		product