OS command injection in TOTOLINK X6000R firmware upload handler
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.
Summary
A vulnerability affects TOTOLINK X6000R 9.4.0cu.652_B20230116. The firmware_check function of the /cgi-bin/cstecgi.cgi UploadFirmwareFile handler does not sanitize the file_name argument before it reaches an OS command (CWE-78). A remote attacker can run operating system commands on the device without authentication or user interaction.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
A security vulnerability has been detected in TOTOLINK X6000R 9.4.0cu.652_B20230116. The impacted element is the function firmware_check of the file /cgi-bin/cstecgi.cgi of the component UploadFirmwareFile Handler. Such manipulation of the argument file_name leads to os command injection. The attack may be performed from remote.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for TOTOLINK X6000R.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-06 Threatist record created from CVE-2026-105484
- 2026-10-06 Alias added: GHSA-34j5-jp28-25g9
- 2026-10-06 CISA SSVC decision points changed
References
Other 1
More TOTOLINK vulnerabilities
- TI-2023-25090 An issue in TOTOLINK A3700R v.9.1.2u.6165_20211012 allows a remote attacker to execute… CVSS 3.1CRITICAL 9.8
- TI-2026-80926 TOTOLINK A950RG stack-based overflow in infostat.cgi via CONTENT_LENGTH CVSS 4.0CRITICAL 10.0
- TI-2026-79142 Command injection in TOTOLINK A950RG UploadCustomModule function CVSS 4.0CRITICAL 10.0
- TI-2026-79031 TOTOLINK EX200 setWiFiAclAddConfig stack-based buffer overflow CVSS 4.0CRITICAL 10.0
- TI-2026-79012 Stack-based buffer overflow in TOTOLINK EX200 setStaticDhcpConfig CVSS 4.0CRITICAL 10.0
- TI-2026-67719 Stack-based overflow in Totolink A3002MU QoS rule handler CVSS 4.0CRITICAL 10.0
Sources
- CVE-2026-105484 · CVE Program
- CVE-2026-105484 · NVD
- FIRST EPSS
- GHSA-34j5-jp28-25g9 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences