OS Command Injection Vulnerability in LB-LINK AC1900 Router
CVE-2025-1609

5.3MEDIUM

Key Information:

Vendor
Lb-link
Status
Ac1900 Router
Vendor
CVE Published:
24 February 2025

Badges

👾 Exploit Exists🟡 Public PoC

Summary

A significant vulnerability has been identified in the LB-LINK AC1900 Router version 1.0.2, specifically in the function websGetVar located in the file /goform/set_cmd. This vulnerability allows an attacker to manipulate the argument 'cmd', resulting in an OS command injection that can be executed remotely. The exploit has been made public, increasing the risk of an attack. Attempts to notify the vendor regarding this issue have gone unanswered.

Affected Version(s)

AC1900 Router 1.0.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-1609 - Proof of Concept

References

https://vuldb.com/?id.296599
vdb-entrytechnical-description
https://vuldb.com/?ctiid.296599
signaturepermissions-required
https://vuldb.com/?submit.501023
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

h0lyduck (VulDB User)
.