OS command injection in TOTOLINK X2000R boa formUpload() function
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
The TOTOLINK X2000R firmware version TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327 is affected. The boa web server's formUpload() function passes unsanitized input to an OS command (CWE-78), so a crafted HTTP request can run arbitrary code. An attacker needs valid credentials to send the request.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
A OS command injection vulnerability exists in the boa formUpload() functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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 X2000R.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-21 Threatist record created from CVE-2026-10138
- 2026-10-21 Alias added: GHSA-fxrm-2vm6-776j
- 2026-10-23 CISA SSVC decision points changed
References
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-2026-10138 · CVE Program
- CVE-2026-10138 · NVD
- FIRST EPSS
- GHSA-fxrm-2vm6-776j · GitHub Advisory Database · CC BY 4.0
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