CVE-2026-0641 Details
Description
A security vulnerability has been detected in TOTOLINK WA300 5.2cu.7112_B20190227. This vulnerability affects the function sub_401510 of the file cstecgi.cgi. The manipulation of the argument UPLOAD_FILENAME leads to command injection. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used.
A command injection vulnerability has been identified in the TOTOLINK WA300 router firmware version 5.2cu.7112_B20190227. The issue resides in the cstecgi.cgi component, specifically within the sub_401510 function. This vulnerability allows remote, unauthenticated attackers to execute arbitrary commands on the device by manipulating the UPLOAD_FILENAME parameter in HTTP upload requests. The vulnerability arises from inadequate validation and sanitization of user-supplied input, which is directly incorporated into system commands executed by the router.
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 Jan 6, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/JackWesleyy/CVE/blob/main/WA300/TOTOLINK_WA300_RCE.md | [email protected] | ExploitThird Party Advisory |
| https://github.com/JackWesleyy/CVE/blob/main/WA300/TOTOLINK_WA300_RCE.md#poc | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/?ctiid.339684 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.339684 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.732234 | [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 wa300 firmware | 5.2cu.7112_b20190227 |
CPE
Remediation
| |
| totolink wa300 | 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] |
| Jan 22, 2026 | Initial Analysis | [email protected] |
| Jan 6, 2026 | New CVE Received | [email protected] |