Critical severity9.8NVD Advisory· Published Feb 27, 2026· Updated Jun 17, 2026
CVE-2026-3301
CVE-2026-3301
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
4cpe:2.3:o:totolink:n300rh_firmware:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:totolink:n300rh_firmware:*:*:*:*:*:*:*:*range: 6.1c.1353_B20190305
- cpe:2.3:o:totolink:n300rh_firmware:6.1c.1349_b20181018:*:*:*:*:*:*:*
- cpe:2.3:o:totolink:n300rh_firmware:6.1c.1353_b20190305:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
5- github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/N300RHv4/01_setWebWlanIdx_RCE/README.mdnvdExploitThird Party Advisory
- vuldb.comnvdThird Party AdvisoryVDB Entry
- vuldb.comnvdThird Party AdvisoryVDB Entry
- vuldb.comnvdPermissions RequiredVDB Entry
- www.totolink.netnvdProduct
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