CVE-2026-5020
Remote Command Injection in Totolink A3600R Parameter Handler
Publication date: 2026-03-29
Last updated on: 2026-04-29
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| totolink | a3600r_firmware | 4.1.2cu.5182_b20201102 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-77 | The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. |
| CWE-74 | The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in the Totolink A3600R router, specifically in the function setNoticeCfg within the file /cgi-bin/cstecgi.cgi, which is part of the Parameter Handler component.
The issue arises from improper handling of the NoticeUrl argument, which allows an attacker to perform command injection.
This means that an attacker can remotely send crafted input to this function to execute arbitrary commands on the device.
The exploit for this vulnerability is publicly available.
How can this vulnerability impact me? :
An attacker exploiting this vulnerability can remotely execute arbitrary commands on the affected Totolink A3600R device.
This can lead to unauthorized control over the device, potentially allowing the attacker to disrupt network operations, steal sensitive information, or use the device as a foothold for further attacks.