LB-LINK BL-WR9000 lighttpd.cgi bs_GetHostInfo information disclosure

CVE Details

Basic Information

Title	LB-LINK BL-WR9000 lighttpd.cgi bs_GetHostInfo information disclosure
Type	cve
Published	2025-07-14T04:32:06.275Z
Modified	2025-07-14T04:32:06.275Z

Product Information

Vendor	LB-LINK
Product	BL-AC1900
Version	20250702

CVSS Information

Base Score	6.9 (MEDIUM)
Attack Vector	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

AI Analysis

AI Description	A critical vulnerability in LB-LINK routers allows remote attackers to disclose sensitive information via the bs_GetHostInfo function in lighttpd.cgi. This affects multiple models and the exploit is publicly available.
AI Severity	High
AI Vendor	LB-LINK
AI Product	LB-LINK BL-WR9000
AI Version	BL-AC1900, BL-AC2100_AZ3, BL-AC3600, BL-AX1800, BL-AX5400P, BL-WR9000

Affected Products

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

Additional Information

CWE List	CWE-200, CWE-284
Source	VulDB

Description

A vulnerability 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. This vulnerability affects the function bs_GetHostInfo in the library libblinkapi.so of the file /cgi-bin/lighttpd.cgi. The manipulation leads to information disclosure. The attack can be initiated 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

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