CVE-2025-57685: Command Injection

Published Sep 22, 2025
·
Updated

The LB-Link routers, including the BL-AC2100AZ3 V1.0.4, BL-WR4000 v2.5.0, BL-WR9000AE4 v2.4.9, BL-AC1900AZ2 v1.0.2, BL-X26AC8 v1.2.8, and BL-LTE300DA4 V1.2.3 models, are vulnerable to unauthorized command injection. Attackers can exploit this vulnerability by accessing the /goform/setserialcfg interface to gain the highest level of device privileges without authorization, enabling them to remotely execute malicious commands.

Affected Software

6 affected components
LB-LINK BL-AC2100_AZ3
LB-LINK BL-WR4000
LB-LINK BL-WR9000_AE4
LB-LINK BL-AC1900_AZ2
LB-LINK BL-X26_AC8
LB-LINK BL-LTE300_DA4

Event History

Sep 22, 2025
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·07:15 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2025-57685?

CVE-2025-57685 is classified as a high severity vulnerability due to the potential for unauthorized command injection.

2

How do I fix CVE-2025-57685?

To remediate CVE-2025-57685, users should update their LB-Link router to the latest firmware version provided by the manufacturer.

3

Which models are affected by CVE-2025-57685?

CVE-2025-57685 affects multiple LB-Link router models including BL-AC2100_AZ3, BL-WR4000, BL-WR9000_AE4, BL-AC1900_AZ2, BL-X26_AC8, and BL-LTE300_DA4.

4

What kind of attack can exploit CVE-2025-57685?

The vulnerability in CVE-2025-57685 can be exploited through unauthorized command injection attacks.

5

Is there a workaround for CVE-2025-57685?

Currently, the most effective workaround for CVE-2025-57685 is to disconnect the affected devices from the network until a firmware update is applied.

Contact

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