CVE-2025-9935 Details
Description
A vulnerability was determined in TOTOLINK N600R 4.3.0cu.7866_B20220506. This vulnerability affects the function sub_4159F8 of the file /web_cste/cgi-bin/cstecgi.cgi. Executing manipulation can lead to command injection. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized.
A command injection vulnerability has been identified in the TOTOLINK N600R router, specifically in the firmware version 4.3.0cu.7866_B20220506. The issue arises in the web CGI binary '/web_cste/cgi-bin/cstecgi.cgi', within the function 'sub_4159F8'. This vulnerability allows pre-authentication command injection, where an unauthenticated attacker can execute arbitrary system commands by sending specially crafted payloads. The exploitation can be performed remotely, without the need for authentication.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Sep 4, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/mono7s/TOTOLINK/blob/main/N600R/TOTOLINK%20N600R%20Unauthorized_Command_Injection.md | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/?ctiid.322337 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.322337 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.643088 | [email protected] | Third Party AdvisoryVDB Entry |
| https://www.totolink.net/ | [email protected] | Product |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
| CWE-74 | Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') | [email protected] |
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| totolink n600r firmware | 4.3.0cu.7866_b20220506 |
CPE
Remediation
| |
| totolink n600r | All versions |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Sep 29, 2025 | Initial Analysis | [email protected] |
| Sep 4, 2025 | New CVE Received | [email protected] |