X6000r Firmware
CVE-2025-52053
CRITICAL
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Command injection prevention
MITRE ATT&CK
1 technique across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS 9.8, EPSS 66.1%, PoC available. TOTOLINK routers are deployed primarily in APAC markets. The X6000R is a WiFi 6 router targeting home and SMB users. Unauthenticated command injection on routers is a preferred vector for IoT botnet recruitment. |
| Exploit ScenarioDerived | Botnet infrastructure scans for TOTOLINK X6000R devices. An automated exploit sends a crafted request with a command-injected file_name parameter. The router downloads and executes a botnet client, joining a DDoS network. DNS settings are hijacked to redirect connected devices to phishing pages. |
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Alert meAnalysisAIv1 – Mar 28, 2026
TOTOLINK X6000R router firmware V9.4.0cu.1360_B20241207 contains an unauthenticated command injection in the sub_417D74 function via the file_name parameter. Remote attackers can execute arbitrary commands on the router without authentication through crafted HTTP requests.
Earlier versions of this analysis (1)
Unauthenticated command injection in TOTOLINK X6000R WiFi 6 router via file_name parameter enables remote root command execution.
RemediationAI
Check for firmware updates from TOTOLINK. Disable remote management. Place the router behind a firewall if used in business environments. Consider replacing with a more actively maintained router brand.
Affects your stack
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Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
The sub_417D74 function in the router's HTTP server processes the file_name parameter without sanitization, passing it to a system command execution context. No authentication is required. TOTOLINK routers run embedded Linux and the web server typically runs as root.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
TOTOLINK X6000R V9.4.0cu.1360_B20241207 was found to contain a command injection vulnerability in the sub_417D74 function via the file_name parameter. This vulnerability allows unauthenticated attackers to execute arbitrary commands via a crafted request.
Executive ViewAI
Organizations using TOTOLINK X6000R V9.4.0cu.1360_B20241207 face critical risk from CVE-2025-52053, a command injection vulnerability rated CVSS 9.8. Successful exploitation could allow attackers to execute arbitrary code or commands on affected systems, potentially leading to full system compromise. With an EPSS score of 66%, this vulnerability faces very high likelihood of exploitation. Organizations should apply vendor updates immediately when available and implement compensating controls in the interim.
Apply vendor patch. If immediate patching is not feasible: (1) Deploy WAF rules to block injection patterns; (2) Restrict network access to affected components; (3) Enable enhanced logging for suspicious activity.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
OS command injection occurs when an application passes unsanitized user input directly into system shell commands.
Affected Products (CPE)CVE.org
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