A vulnerability has been found in LB-LINK AC1900 Router 1.0.2 and classified as critical. Affected by this vulnerability is the function websGetVar of the file /goform/set_cmd. The manipulation of the argument cmd with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability.

It is possible to read the advisory at noisy-caravel-a9a.notion.site. This vulnerability is known as CVE-2025-1609. The exploitation appears to be easy. The attack can be launched remotely. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

It is possible to download the exploit at noisy-caravel-a9a.notion.site. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Router Operating System

Vendor

• LB-LINK

Name

• AC1900 Router

Version

• 1.0.2

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Exploitinginfo

Threat Intelligenceinfo

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Submitinfo

Accepted

• Submit #501023: LB-LINK LB-LINK AC1900 router V1.0.2 Command Injection (by h0lyduck)

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