# CVE-2026-3301

## Summary

- **CVE ID:** CVE-2026-3301
- **Severity:** CRITICAL
- **CVSS Score:** 10 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P)
- **CWE:** CWE-78, CWE-77
- **Published:** Feb 27, 2026
- **Last Modified:** Mar 12, 2026

## Description

A security flaw has been discovered in Totolink N300RH 6.1c.1353_B20190305. Affected by this vulnerability is the function setWebWlanIdx of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Performing a manipulation of the argument webWlanIdx results in os command injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.

## Affected Products

- Totolink — N300RH (6.1c.1353_B20190305)

## References

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

## Exploitation Prediction (EPSS)

- **EPSS Score:** 4.03%
- **EPSS Percentile:** 90.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._