CVE-2026-7155 - Totolink A8000RU CGI cstecgi.cgi setLoginPasswordCfg os command injection

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CRITICAL

Totolink A8000RU CGI cstecgi.cgi setLoginPasswordCfg os command injection

Published Apr 27, 2026

9.3

CRITICAL

CVSS 4.0

EPSS 3.25%

Description

A security vulnerability has been detected in Totolink A8000RU 7.1cu.643_b20200521. This impacts the function setLoginPasswordCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument admpass leads to os command injection. The attack may be initiated remotely. The exploit has been disclosed publicly and may 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-2026-25920
Advisory
https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_319/README.md
exploit
https://vuldb.com/submit/801141
third-party-advisory
https://vuldb.com/vuln/359754
vdb-entrytechnical-description
https://vuldb.com/vuln/359754/cti
signaturepermissions-required
https://www.totolink.net/
product

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-25920		Advisory
https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_319/README.md		exploit
https://vuldb.com/submit/801141		third-party-advisory
https://vuldb.com/vuln/359754		vdb-entrytechnical-description
https://vuldb.com/vuln/359754/cti		signaturepermissions-required
https://www.totolink.net/		product