CVE-2025-7574

CRITICAL

LB-LINK - Improper Authentication

Title source: llm

Description

A vulnerability, which was classified as critical, was found in LB-LINK BL-AC1900, BL-AC2100_AZ3, BL-AC3600, BL-AX1800, BL-AX5400P and BL-WR9000 up to 20250702. Affected is the function reboot/restore of the file /cgi-bin/lighttpd.cgi of the component Web Interface. The manipulation leads to improper authentication. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

References (5)

Core 5

Core References

Permissions Required, VDB Entry vdb-entry technical-description

https://vuldb.com/?id.316272

Permissions Required, VDB Entry signature permissions-required

https://vuldb.com/?ctiid.316272

Permissions Required, VDB Entry third-party-advisory

https://vuldb.com/?submit.608018

Various Sources related

https://github.com/waiwai24/0101/blob/main/CVEs/Blink/Privilege_Control_Defect_in_Blink_Router_Web_Interface_Permits_Arbitrary_Sensitive_Operation_Execution.md

View Writeup ZIP pw:eip

Various Sources exploit

https://github.com/waiwai24/0101/blob/main/CVEs/Blink/Privilege_Control_Defect_in_Blink_Router_Web_Interface_Permits_Arbitrary_Sensitive_Operation_Execution.md#poc

View Writeup ZIP pw:eip

Scores

CVSS v3 9.8

EPSS 0.0039

EPSS Percentile 60.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact total

Details

CWE

CWE-287

Status published

Products (6)

LB-LINK/BL-AC1900 20250702

LB-LINK/BL-AC2100_AZ3 20250702

LB-LINK/BL-AC3600 20250702

LB-LINK/BL-AX1800 20250702

LB-LINK/BL-AX5400P 20250702

LB-LINK/BL-WR9000 20250702

Published Jul 14, 2025

Tracked Since Feb 18, 2026