CVE-2026-3301

Totolink N300RH Web Management cstecgi.cgi setWebWlanIdx os command injection

Published Feb 27, 2026 CVSS 4.0 · 9.3 Critical EPSS 4.4% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Totolink n300rh
CPEs cpe:2.3:h:totolink:n300rh:4.0:*:*:*:*:*:*:*
cpe:2.3:o:totolink:n300rh_firmware:6.1c.1349_b20181018:*:*:*:*:*:*:*
cpe:2.3:o:totolink:n300rh_firmware:6.1c.1353_b20190305:*:*:*:*:*:*:*
Vendors & Products Totolink n300rh
Type Values Removed Values Added
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.
Title Totolink N300RH Web Management cstecgi.cgi setWebWlanIdx os command injection
First Time appeared Totolink
Totolink n300rh Firmware
Weaknesses CWE-77
CWE-78
CPEs cpe:2.3:o:totolink:n300rh_firmware:*:*:*:*:*:*:*:*
Vendors & Products Totolink
Totolink n300rh Firmware
References
Metrics cvssV2_0

{'score': 10, 'vector': 'AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 9.8, 'vector': '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'}

cvssV3_1

{'score': 9.8, 'vector': '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'}

cvssV4_0

{'score': 9.3, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
Feb 27, 2026, 6:53 PM
Reserved
Feb 26, 2026, 8:33 PM
Status
Analyzed
Published
Feb 27, 2026, 6:18 AM
Modified
Jun 17, 2026, 10:43 AM