Vulnerability details
CVE-2026-3301
Totolink N300RH
Totolink N300RH Web Management cstecgi.cgi setWebWlanIdx os command injection
CVSS 4.0
9.3Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.3Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulDB) | 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 |
| 9.8Critical | 3.1 | CVEProject cvelistV5 (CNA) (VulDB) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R |
| 9.8Critical | 3.0 | CVEProject cvelistV5 (CNA) (VulDB) | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R |
| 10.0High | 2.0 | CVEProject cvelistV5 (CNA) (VulDB) | AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Totolink | N300RH | 6.1c.1353_B20190305 | CVEProject cvelistV5 (CNA) |
References and advisories
5- https://vuldb.com/?id.348052 vdb-entrytechnical-description
- https://vuldb.com/?ctiid.348052 signaturepermissions-required
- https://vuldb.com/?submit.761297 third-party-advisory
- https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/N300RHv4/01_setWebWlanIdx_RCE/README.md exploit
- https://www.totolink.net/ product
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Details
- Published
- 2026-02-27
- Last updated
- 2026-02-27
- State
- Published
- Assigner (CNA)
- VulDB
Exploit prediction (EPSS)
4.43%
Probability of exploitation in 30 days
91.4%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-78OS Command Injection
- CWE-77Command Injection