Is this vulnerability remotely exploitable over the internet?

It can be, depending on how the router is deployed. If the administrative web interface is exposed to the internet or reachable from an untrusted network segment, a remote attacker can send crafted requests to exploit the issue.

Does exploitation require authentication?

That depends on the router's configuration and access controls. If the `/goform/set_wifidog_settings` endpoint is accessible without proper authentication or if credentials are weak or compromised, an attacker may be able to exploit the vulnerability remotely.

What is the safest general fix pattern for this class of bug?

The safest pattern is to eliminate shell-based command construction entirely and replace it with parameterized system APIs or internal functions that take structured arguments. When parameters like `wd_enable` must be accepted, they should be strictly validated against a small, well-defined set of allowed values before use.

Severity:

HIGH RISK

(7.3)

Command Injection via Unsanitized Parameter (CWE-77) in D-Link DIR-823X WiFiDog Settings

CVE-2026-1125

Published:

Jan 18, 2026

Status:

Modified

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Command Injection

CWE:

CWE-74;CWE-77

Impact:

Remote Code Execution on Router Firmware

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

Vulnerability Type

Category:

Command Injection

CWE:

CWE-74;CWE-77

Impact:

Remote Code Execution on Router Firmware

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

Command Injection via Unsanitized Parameter (CWE-77) in D-Link DIR-823X WiFiDog Settings

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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