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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.

PUBLISHED Reserved 2026-02-26 | Published 2026-02-27 | Updated 2026-02-27 | Assigner VulDB




CRITICAL: 9.3CVSS: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
CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
CRITICAL: 9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
10.0AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

OS Command Injection

Command Injection

Product status

6.1c.1353_B20190305
affected

Timeline

2026-02-26:Advisory disclosed
2026-02-26:VulDB entry created
2026-02-26:VulDB entry last update

Credits

xuanyu (VulDB User) reporter

References

vuldb.com/?id.348052 (VDB-348052 | Totolink N300RH Web Management cstecgi.cgi setWebWlanIdx os command injection) vdb-entry technical-description

vuldb.com/?ctiid.348052 (VDB-348052 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/?submit.761297 (Submit #761297 | TOTOLINK N300RH_V4 V6.1c.1353_B20190305 Command Injection) third-party-advisory

github.com/...TOLINK/N300RHv4/01_setWebWlanIdx_RCE/README.md exploit

www.totolink.net/ product

cve.org (CVE-2026-3301)

nvd.nist.gov (CVE-2026-3301)

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