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CVE-2026-3301 - Vulnerability Analysis

CriticalCVSS: 9.8

Last Updated: February 27, 2026

Totolink N300RH - Command Injection

Published: February 27, 2026Updated: February 27, 2026Remote Exploitable

Overview

Totolink N300RH 6.1c.1353_B20190305 contains a command injection caused by manipulation of the "webWlanIdx" argument in /cgi-bin/cstecgi.cgi Web Management Interface, letting remote attackers execute arbitrary OS commands, exploit requires no special privileges.

Severity & Score

Severity: Critical

CVSS Score: 9.8

Impact

Remote attackers can execute arbitrary OS commands, potentially leading to full system compromise.

Mitigation

Update to the latest version.

References

https://www.totolink.net/
https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/N300RHv4/01_setWebWlanIdx_RCE/README.md
https://vuldb.com/?ctiid.348052
https://vuldb.com/?id.348052
https://vuldb.com/?submit.761297

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Details

CVE ID: CVE-2026-3301
Severity: Critical
CVSS Score: 9.8
Type: command_injection
Status: new

CWE

CWE-77

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H