CVE-2026-7152 - Totolink A8000RU CGI cstecgi.cgi setTelnetCfg os command injection

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CRITICAL

Totolink A8000RU CGI cstecgi.cgi setTelnetCfg os command injection

Published Apr 27, 2026

9.3

CRITICAL

CVSS 4.0

EPSS 3.25%

Description

A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. The affected element is the function setTelnetCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument telnet_enabled leads to os command injection. It is possible to launch the attack remotely. The exploit is publicly available and might be used.

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-2026-25914
Advisory
https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_316/README.md
exploit
https://vuldb.com/submit/801138
third-party-advisory
https://vuldb.com/vuln/359751
vdb-entrytechnical-description
https://vuldb.com/vuln/359751/cti
signaturepermissions-required
https://www.totolink.net/
product

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-25914		Advisory
https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_316/README.md		exploit
https://vuldb.com/submit/801138		third-party-advisory
https://vuldb.com/vuln/359751		vdb-entrytechnical-description
https://vuldb.com/vuln/359751/cti		signaturepermissions-required
https://www.totolink.net/		product