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CRITICAL

CVE-2026-3301

Totolink N300RH Web Management cstecgi.cgi setWebWlanIdx os command injection

CVSS v3

9.8

CRITICAL

EPSS Score

4.6 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

poc

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-3301 yet.

Full record on NVD

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.

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2026-02-27
Last Modified
2026-02-27

Frequently asked questions

What is CVE-2026-3301?

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.

Is CVE-2026-3301 actively exploited?

A proof-of-concept exploit exists for CVE-2026-3301, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-3301?

CVE-2026-3301 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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