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8.9
CVE-2026-9458: Totolink A8000RU Web Interface Allows Remote Command Execution
CVE-2026-9458
Summary
An attacker can remotely access and control the Totolink A8000RU router's settings through its web interface. This could allow them to make unauthorized changes or disrupt the router's operation. We recommend updating the router's firmware to the latest version to fix this issue.
Original title
A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. The impacted element is the function setWanCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Su...
Original description
A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. The impacted element is the function setWanCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Such manipulation of the argument enabled leads to os command injection. The attack may be performed from remote. The exploit is publicly available and might be used.
nvd CVSS2.0
10.0
nvd CVSS3.1
9.8
nvd CVSS4.0
8.9
Vulnerability type
CWE-77
Command Injection
CWE-78
OS Command Injection
Published: 25 May 2026 · Updated: 1 Jun 2026 · First seen: 26 May 2026