Read the docs
TI-2026-03188 Aliases CVE-2026-3696GHSA-g54x-w5rq-2789

Totolink N300RH CGI cstecgi.cgi setWiFiWpsConfig os command injection

Priority HIGH 70CWE-77Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.

Summary

A vulnerability was found in Totolink N300RH 6..1c.1353_B20190305. The affected element is the function setWiFiWpsConfig of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation results in os command injection. The attack can be initiated remotely. The exploit has been made public and could be used.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0233 83rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TOTOLINKN300RH6..1c.1353_B20190305—No fix listedCNA
  • N300RH VendorTOTOLINK Affected 6..1c.1353_B20190305 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:totolink:n300rh_firmware:6.1c.1353_b20190305:*:*:*:*:*:*:*6.1c.1353_b20190305VulnerableTOTOLINK
cpe:2.3:h:totolink:n300rh:4.0:*:*:*:*:*:*:*4.0Running onTOTOLINK
  • cpe:2.3:o:totolink:n300rh_firmware:6.1c.1353_b20190305:*:*:*:*:*:*:* Versions 6.1c.1353_b20190305 Vulnerable ·TOTOLINK
  • cpe:2.3:h:totolink:n300rh:4.0:*:*:*:*:*:*:* Versions 4.0 Running on ·TOTOLINK

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-3696
  2. 2026-10-03 Alias added: GHSA-g54x-w5rq-2789

References

Exploit 1

Other 1

  • TI-2026-02851 Totolink N300RH Web Management cstecgi.cgi setWebWlanIdx os command injection CVSS 4.0CRITICAL 9.3
  • TI-2025-05801 TOTOLINK N300RH HTTP POST Message formPortFw buffer overflow CVSS 4.0HIGH 8.7
  • TI-2025-05802 TOTOLINK N300RH HTTP POST Message formFilter denial of service CVSS 4.0MEDIUM 5.1
  • TI-2025-04346 TOTOLINK N300RH cstecgi.cgi setUploadUserData command injection CVSS 4.0MEDIUM 5.3
  • TI-2025-04345 TOTOLINK N300RH cstecgi.cgi setUnloadUserData command injection CVSS 4.0MEDIUM 5.3
  • TI-2025-04344 TOTOLINK N300RH cstecgi.cgi CloudACMunualUpdateUserdata command injection CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences