CVE-2026-5688
OS Command Injection in Totolink A7100RU setDdnsCfg Function
Publication date: 2026-04-06
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 | a7100ru | 7.4cu.2313_b20191024 |
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-78 | The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command 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 A7100RU device, specifically in the setDdnsCfg function of the /cgi-bin/cstecgi.cgi file. It involves manipulation of the 'provider' argument, which leads to an operating system command injection. This means an attacker can remotely execute arbitrary commands on the device by exploiting this flaw.
How can this vulnerability impact me? :
The vulnerability allows remote attackers to execute arbitrary OS commands on the affected device without any authentication or user interaction. This can lead to unauthorized control over the device, potentially compromising its confidentiality, integrity, and availability.