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TI-2025-04346 Aliases CVE-2025-4851GHSA-v373-prqc-2h4q

TOTOLINK N300RH cstecgi.cgi setUploadUserData command injection

Priority LOW 27CWE-74Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
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 classified as critical was found in TOTOLINK N300RH 6.1c.1390_B20191101. This vulnerability affects the function setUploadUserData of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument FileName leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01547 75th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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.1390_B20191101—No fix listedCNA
  • N300RH VendorTOTOLINK Affected 6.1c.1390_B20191101 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:totolink:n300rh_firmware:6.1c.1390_b20191101:*:*:*:*:*:*:*6.1c.1390_b20191101VulnerableTOTOLINK
cpe:2.3:h:totolink:n300rh:-:*:*:*:*:*:*:*not specified by NVDRunning onTOTOLINK
  • cpe:2.3:o:totolink:n300rh_firmware:6.1c.1390_b20191101:*:*:*:*:*:*:* Versions 6.1c.1390_b20191101 Vulnerable ·TOTOLINK
  • cpe:2.3:h:totolink:n300rh:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TOTOLINK

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-4851
  2. 2026-10-03 Alias added: GHSA-v373-prqc-2h4q

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-2026-03188 Totolink N300RH CGI cstecgi.cgi setWiFiWpsConfig os command injection CVSS 4.0MEDIUM 6.9
  • TI-2025-05802 TOTOLINK N300RH HTTP POST Message formFilter denial of service CVSS 4.0MEDIUM 5.1
  • 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